Imigomo Emyeni Yezinhlangothi Zamanje Zomsebenzi Wembhujiswa Noma Ukucaciswa
Ukubhujiswa Okuvumelekile Nezibhujwana Ezinhle
Ukuhlelwa ngokuzenzekela emakhinini okuhlelwa ngokuzenzekela kwenze ukushintsha kakhulu kumisebenzi wokuvula. Izikhathi zokuvula manje ziyaphela kabangela 60-70% ngokulinganisa nezimodeli ezedwa, okungenzeka ukushintsha okukhulu kumakhampeni abasebenzisa ngokugcwele. Ngenhloso yokuthi le mpaha nezithwala zonke zisebenza ngokuzenzekela, abasebenzisi bakhona ukuthi baleke amandla wokwenza izinkomba ezinhle esebenza ngokuzenzekela ukuthi baphela amathrezi nezikhawulo zokugcina. Le makhina futhi kuhlela ngokucacile kakhulu manje. Abakhankatha bakhona ukwenza le nkinga zokuhlelwa ezifanayo noma izimo ezinhle zokuhlelwa okungcolile okwasebenza izikhathi ezingcolile zokuvula ngokwamanje. Okutholwe ngokulandela kuyizinto ezinhle ezifanayo nezokweyiswa ngokuphelele, nezindleke zokuphela futhi nezibonelo ezingcolile zokushade esibonakalayo. Le migaqo yokucacile yilapho abathengi bayaqaphela xa bakhokha amaphesenti amakhulu ngokwezindleko zokwenza izicathami ezihlelwe noma izinto zokugcogwa eziphatheni.
Imicabho ye-Multi-Hoop Yezindlela Eziphambene
Izimakhine zokuqamba zokubhala zangoku zinezinhlelo zokubhala ngeminye izihawu kuleyo kuvumela abasebenzisi ukusebenza kuzo zinhlelo ezinkimbinkimbi ngaphandle kokuphela noma ukushintana izihawu emadeni. Ibhizinisi yamagama libuyekeza ngokusheshisa kakhulu leso kusihlala kubaluleke ukuba nenhloso yokuqamba lezo zinhlelo ezinkimbinkimbi ngokusheshisa ukululethwa kwezinsuku. Yini engivumela ukuba izinhlelo eziyinhawu zibe nemkhiqizo? Zakhona ukuba kuvumela ukuba kwenzeke ngokusheshisa kakhulu ukusebenza ngokulinganisa nezindlela ezindala. Kuye kubantu bonke abasebenzisa izinhlelo zokubhala ngokwabo kwezicathami noma izimpahla zemoto, lokhu kuvumela ukuba kwenze ishishini ngokusheshisa ngaphandle kokuthile kakhulu kweqembu. Izinhlelo zokudizayina nezinkampani eziphakeme kancane zonke zibona ukuthi kudingeka zisebenzise le teknoloji njengoba zihlinzeka nabasebenta abathanda izimpahla eziyinhloko kodwa zihlala ziyathanda ukuba izinsuku zokululethwa zibe ngokufanayo nezinsuku zokwenziwa kwezimpahla ezikhulu.
Amagugu Akuvelweyo Namathiphu Akhombisa Ngokudijithali
Izimakhine zokusuka zasele kwezinsuku zilandelayo zinezinhlelo zokubhala ngokuzenzekela ukudizaynwa ngokujulile kubasebenzisa. Inani elikhulu lezinhlelo zilandelayo nezinhlelo ezihlanganisa ezinguqulo ezihlukahlukene ezinguqulo ezikhona ngokuzenzekela, ngakho akudingeki abantu abenza kabusha njengoba kudinga okusha. Izinhlelo zokubhala zilandelaya zinezinto ezokudla kusuka kuzinhlelo ezifushane kuzokudla nezinhlelo ezinhle zokubhala, ukunika abasebenzisi amandla okudizayna ngokujulile ngaphandle kokugcina amahora okugcina. Kanti-ke okubonakala ngokuhle kuyi-sikrini esidijithali. Lezi sikrini zinika amandla abasebenzisi ukusela ngokubhala, ukushintsha okuphakeme kwezinkinobho, nokulandelana nokulayisha zonke ngelokho bakhona ukudla kwezinto zabo kuvulekile. Lapho kuhlanganiswa nezi zinhlelo, izimakhine zokusuka zasele zilandelayo zinika amandla abasebenzisa noma kubaba noba kubasebenzisi ukwenza izinto ezinhle nezinhlelo ezinhle ngaphandle kokudinga ukuzwisisa ukusebenzisa izinhlelo.
Ukulandela kwezibonelo ekuhlukaneni
Ukubhejwa kweziphoso ngokusebenza kwe-AI nokulungisa
Ukungenisa i-AI kumakhina ekuhleleni amathulwa yindlela enkulu yokuthuthukisa ukubona nokulungisa amaphoyisa ngelixa kuhlelwa. Lezi zinhlelo ziyimala ngokuzenzakalanga futhi zilungisa ngokuzenzakalanga ukuze abasebenzisi bangeke bakhubeki izindleko eziyinhloso. Kunezinye izifundo ezithi ukuthi lezi makhina enezo zinhlelo ziya kuphuthumela kakhulu kumathewa ngokupelile kwezinsuku zokuphakama ngokuphindwa kabili. Ngaphezulu kwalokho, lezi zibonelo zenza ukusebenza ngokuphelele kakhulu kwezinye izinto. Manje ababhili bethenka ukuthi lezi makhina ayilungise amathulwa afanele, okungukhonakalanga ukwenza ngaphambili noma ngabe ukuthuthukwa kwezobuchwepheshe kungasebenza.
IoT Connectivity for Remote Design Uploads
Ukuqashwa kwezinhlelo zokuxhumana (IoT) emashini embroidery sewing yahlule kahle indlela okulayishwa ngayo amadilinga futhi kunganiwa indlela yokusebenza kwezemakini kudoti. Manje amakhampani axhuma lemi mashini kuzo zinhlelo zazo ukuze balethule amadilinga amasha kusukela kuphi, oku kanciphisa isikhathi esehlulekile futhi kuvumela ukusebenzela ngokungqongqo lapho abantu basekhuleni ezahlukene. Ukuhleleka okutholakala ngemuva kokuqashwa kwe-IoT kungenzela ukuthi abadizaynini angakhohlwa ngemvume futhi abasebenzi besikoleni bakwazi ukuhamba ngaphandle kokubuyela futhi kubuyele. Lokhu kuthiwa yini ekuseni? Ukukhulula okusha okuvela kuzo futhi ukuphendula okulungileyo kwezidingo zokuthenga kahle kuzo. Imafuthi ezisebenzisa le teknoloji ezitholile ukuthi kuzokwazi ukwenza amasevisi amasha esesekela kuzo izinyanga kusukela kuzo izinga.
Amamotela Amanziyo Amancane Nezinhlonipho Ezilandelayo
Lokhuzele, izinhlayiya zokuqamba eziningi zifaka kakhulu izimotolo zokunciphisa ukusebenza kwamagetsi okwenza ukuba kube lula ukusetshenziswa kwamagetsi. Kumaqashi, lokhu kusho ukuthi kubaluleke kwezimali ngemva kwekhwekhwetha futhi kuhlanganise nezidingo zokwenza izinto ngendlela elandelwa yizindaba. Iqembu lezokudlula laphaphu laphela kuthuthukisa ukuphepha kwezimala ngemva kwezinhlanu eziningi, ngakho ke abasebenzisa lezi zinhlayiya ezifanele kakhulu bangawopheza amasevisi okuqamba angahlethwa yindlela elandelwa yezulu noma ukungabi nendawo. Futhi, lapho izinkampani zilayisha lezi zinhlobo, zidinga izinkinga zezulu ngokugcwele futhi zenza izinto zabo zibe nembile kakhulu kwaqo abakhumeli abaningi abathanda ukuthi baziwe ukuthi izinto zenzeka kanjani futhi zingenziwa kanjani.
Iindlela Zokusetshenziswa Eziphumelelayo Ngokubanzi
Isibonelo Esikhundleni Nezicelo Ezilandelwayo
Isicathamiya esibhekelelwe kakhulu kuyavutsha indlela ethinkeni ngemibhakabhaka, futhi amashini wokubhala embubezi kuyasebenza ngokweqile kule tendi. Le miyambo ivumela abakhankatha ukwengeza zonke izinto eziqokiwe ngokwezifiso kwezicathami, ukwenza ngayinye ingxenye esingathelwa phantsi. Abantu bafuna okuqukethwe kakhulu noma kuphela okuvela ngokubanzi. Imibuzo yakamuva ibonze ukuthi kubudala abathathu kwezikhombisa (7/10) babheka ngokubanzi izinto abakhuthazwa ukuthi zibonakale kuthengisa izicathami ezintsha. Rebona okuqukethwe ngokubanzi kwezinye izicathami evela kakhulu kuzindlela zokuthenga ngoba amabhrendi ayazi ukuthi yini abathengi bafuna ngoku. Uma amakhampani enza izinketho zokubhakabhaka, bakhubeka ubudlelwane obuningi nabasebenzisa bayo futhi bakhumbe ngaphezulu kwezinye ezisebenzisa amadela amabi.
Izigcawu Zokugcina Eziyinkimbini Nezinhlelo Zokupaka Indlu
Amamashini okubhujiswa kwakhona kushintsha indlela ethweni ethakatha emakhaya, kuyenza into ngokulula ukwenza amadetheme ekhaya elungileyo. Manje, amathablethi, amadhlipha, futhi kune amapholowha amakhanya anedluliso lebhujwana okongena kakhulu kuzo. Abadizayini besigodi baphawula le qoqo futhi, ngoba abantu bayithanda ukuthi kuzo zikhaya kuzolandela ukubhujiswa. Isicelo sebhujwana kuhlangene kanje kwehlukile kusona kona. Sibona lokhu kuthathwa phambili kakhulu ngokuthuthukwa kwezinhlelo zokudizayina ikhaya. Abakhokho bekhaya naba abadizayina basondelela kakhulu kuzo zinto ozithandayo okuthi kuzo kutholakale ukuthi yikuphi kuzo, okungukuthi kuzo zinto ezithengiselwe kakhulu emhlabeni.
Ukudalwa kwezimpahla zasekhaya nezomnotho
Amamashini okubhujiswa okubhujiswa ngokulula kubangela ubunconywa obuncane kwezimboni zokuthengisa kwekhasimende, ekunikeza izinto ezinezibongo lekho besebenzisa le ndlela elungileyo. Amakhampani ayithola ngokusebenzisa amabhujwa embroidery kumamagqabi, amacapha, nezinto zokuthuthwa zazo zonke izinto ukuze zilindele isihlobo sokuqina ngokulula. Kunezinye izifundo ezitholile ukuthi izinto ezinezibongo eziphambene nokulula kungaholela kuwakhisa ukwazi kwebhrendi ngokuphakathi kwe-80%. Lokho kuyindlela ethile xa kufikirwa ngokuthi abantu bathola ukuthi zibongo ababona ngokuphindaphindayo. Ngokunamathela amabhujwa emboidery kuzilayisho, amakhampani enza ukuthi abathengi babaleke ngempumelelo. Xa umuntu wothola isicathu esibhujwe ngokulula, sibonakala ngokuthi kungaba yimali. Indlela esebenzisa yonke into ethile njengamacapha noma amathaphu ayavuma ngokuthi yini le khampani engathola ukuthi yiliphi injiniyeli.
Ukukhetha i-Machine Ehlukileyo Kulokho Okudingekayo
Ukuhlola Isivinini Sokucfoka Ne-engqa Yocfofana
Ukuhilihla i-machine yokubhala ngemigca kudinga ukubheka izinto ezimbili eziphambene: ukushesha kwayo nokubukhulu kwenqanawa yayo. Ukushesha kwemigca kwenza uhlu oluncedo ekusebenzeni ngokushesha, futhi izinhloso zasekuhlaleni zingase kufike kuma-1,000 yemigca ngemizuzwana engxenyeni ye-1. Le shesha ikhona isikhundla esikhulu xa umuntu uneedwa ukugcina amathikwane qaphela isikhathi. Kuyimpendulo yokubukhulu kwenqanawa yokubhala. Lokhu kubonisa ngokuthi yini leli size lezimo ezinokwenzeka. Izingxenye ezinkulu zinikeza indawo yokwenza amadilinga amakhulu, okuyindlela ebalulekile kakhulu emathulwini ake ngokwenza amathisheti amathile noma amasporti. Xa uhlela ukuthenga, qh focusa ukuthi uthole izinhloso ezikhulumana nezimo eziphambene. Abanye abantu bathanda ukusebenza ngokweqile kakhulu futhi abanye banele ngeminye imigca, ngakho-ke ukuklanywa kweqile kwezinhloso nezimo eziphambene kuthatha isikhathi futhi kuthatha ukungcola emuva kwesikhathi.
Ukuthunyelwe kweSoftware neNkodvabuso Yokudwelisa
Xa ubheka imachina yokubhala ngokubhembene, ukuthambekana kwe software nokuthi yini na ukuthambekana ngezinhlelo zokubhembene kubaluleke kakhulu ukuze ufakwe konke kakhulu ngokubhembene. Imachina efuneka noma iyiphi inqubo yokubhembene esebenza ngokuzuzwe ne software zokubhembene ezilandelayo ikuvumela abasebenzisi ukuthwalela kakhulu kwezinhlelo zabo futhi bakhulise ukukhiqiza xa kudingeka. Amakhiqizo aphezulu asebenza ngokubangena ngemiso ehlukene, ikuvumela abakhethi ukuthwalela kakhulu izindawo ezinhle futhi zingathintekile. Ukuthambekana kahle kwe software kuvumela abakhethi ukuthi bakhale kakhulu futhi abusiness abe ngapelandhla ngokuthi bahlolwe kahle nezinhlelo ezifashwa ngoku. Imachina esebenza ngokubangena ne software ehlukene kubaluleka kakhulu xa kusekelwa kuzindlela ezahlukene nezidingo zokubhembene.
Ukulinganisa I-Ehlukanisiwe nezinhloso Zasekhaya
Kubalulekile ukwazi ukuthi yini engqondweni yokweqisa izimakhine zokubhobha zokusebenza kanye nezokusebenza kwendlini xa ukhetha izimpahla okusebenzisa kakhulu leso kufanele kube yini. Izimakhine zokubhobha zendlela zenziwe ngokukhulu ukwenza amapulodhakthi amakhulu ngokuthiwa yabo yonke into enjiniyela yokwenza amapulodhakthi amanani amakhulu. Kwezinye kuzonake amane amaningi futhi bezonake ukubhobha ngokushesha kakhulu, lokhu kwenza kube khona okwengeziwe kakhulu yizindlini ezenza imicu yempiyela. Izinhlobo zendlini ziyindlela enye kabangela. Zinzinye ukwenyelwa abantu abathola ukubhobha noma abanye abasebenzisa ngokuba yinto yokwenza ngowe- weekends. Lezi zimakhine ziphakathi kakhulu kule ncazelo yokusebenzisa futhi ukuba yimali engapheliwe. Okubaluleke kakhulu kukuthi ukuthi ukwengezwa kwezimpawu kufanele kube yini. Umuntu othola ukwenza impiyela engenayo yekhono engapheliwe kuzobalwa kakhulu noma izimakhine ezincane endlini futhi abasebenzisa amakhosi kakhulu angithi zimakhine zendlela ziyinkulu kakhulu futhi zingithi zingcamukile kakhulu ukwenza amaphropathi amancane endlini.
Imithombo evela kuleli gama ngokubhobha
ukwenza Umphumela We-3D NgeStitching Yekhombisa
Iteknoloji yokuBhodiya ibuyeke kwezindlela ezintsha nezokuthanda, ngakumbi xa kuxhakile ukudala le texture ezi 3D ngokusebenzisa kwi-stitching ephambene. Esingathini, lokhu kusho ukuthi ukuxhumana nezitekheni zokubhodiya ezifundweni kuqala nezinto ezintsha zokwenza nezomaterial. Okuphumelela ngalo? Iindlela zokubhodiya eziphakeme ngokubonakala. Xa abasebenzisa stitch nezifabhriki ezahlukene, bathola ukudala okubonakala nekugcinwa okuhamba nalo. Okuthakazelisa ngokuxhumana nezitekheni zokubhodiya kuyilokhu kuvule amadoda kwezindlela ezintsha zokubhoda. Abakhankatha haqondane noma yikuphi okutheni kwenziwe kuleli xesha. Bayakhuthazwa nezinto ezahlukene nezokubhodiya ezizange zibe yinto ethulweyo, ukudala izinto ezibonakala ngokuhle kanye nezokuthiwa ngokwabo.
Ukubonwa Kwasekelwe Kukubhaliweyo
Izicathami zokwenza izinkomba zibuyisela indlela embekwa ngazo, ekuneni kubikisha abakhankatha ukuthi bavumelane noma kungani izinto eza kubakhona ngemva kokwenziwa. Ngale teknoloji, abakhankatha namakhasimende athola amandla ukubona izinkomba ezikhona ngokubona kakhulu ukuthi zingaphi noma kuziphi izindawo zabo kumasepela noma kuzinye izinto. Lezi zicathami zokwenza izinkomba zenza ukuthi abantu bakhululeke kakhulu ngenkathi kungabikho amaphutha. Uma kungathathwa kakhulu, kungakhathjiswa ngokushesha futhi kungabikho ukuthi kuhlanganise noma kuthathwe. Indlela yonke iba ngaleyo: ukubona ngokushesha kuthola iziphumo ezinhle ngokuthi izinto ezokwenziwa ziyafanisa nazo ezithunyelwe ngokwesikhashana. Futhi, amaphutha amancane angaphansi kwezimpawu kanye nezinkomba, okuyindlela enhle yabo bonke abakhankatha embekwa ngazo noma kungabi noma yikuphi ukukhankatha.
Ukuthiwa kwe-Blockchain yokubekwa kwezinhlobo
Abafakazi be-embroidery abaningi nakuningi bayaqala ukusebenzisa itekhnoloji ye-blockchain kubuchwephesha bazo ukuthi amathemu aphumelele futhi kungaphansi kwekopi engavumelekile. Xa babeka ikhompi yabo ye-blockchain, ikhiqiza indawo yokuthiwa ngokudla ngokuthi yeyiphi na yabo. Lokhu kusiza ukuxazulula le misi ngokupheleleyo. Abakhethiwa baphawulwa ngendlela engcono ngoba ngubani owodwa wezicathami zinemikhiqizo ye-dijithali enxelwe ngalo. Okunempela ngalokhu yikho okuthi abakhelwe nezokuthenga babaluleka ngokuthi kungapheli amalungu okuthiwa ngokudla. Abakhelwe be-embroidery bangakwabela okuqukethwe kwebhu futhi bawuthenge kumaphakamende ngaphandle kokuphika ngokupheleleyo okuthi kungeke kube khona umuntu ozokuthwala amathemu awo futhi aqaphele ngokuthi yeyo yabo.
Ukulungiswa nokuthuthukiswa kwempiyeni
Ukulungiswa okujwayelekile ukuthola isikhathi eside sokusebenza kwamashini
Ukuhlinzela ukuba isitimela sokusebenza kwe-embroidery sibeke kakhulu kudinga ukulindela nokuzithobela. Ukucima umoya ohlukile kwiindlela zokubekwa kwebobbin nokusebenzisa i-lubricant echanekileyo kumaqondana amathathu kuzokuthuthukisa ukudura kwezimimoya ngokukhulu. Bona bonke abasebenzisa izindleko zokuthi kufanele kuhlinzwe uhlelo oluthile lokuhlinzela, ngakumbi ngenxa yokuthi izimimoya ezihlinzwe kahle zibeke kahle ngeminyaka engaphezu. Ukuthatha isikhathi sokwenza uhlelo lokuhlinzela lula kuthuthukisa ukunciphisa izindleko zokulungisa kuzo zonke izikhathi. Lokhu kumele kuthuthukise ukunemba nokuthula ngokweqile futhi ukuvikela izindleko ezingenakubeki xa kungaphela.
Ukugcina Imfashini Yekhono Lokungenisa
Kunoma umuntu ozithanda ukubhembatha, ukwazi ukusebenzisa imicwephe yokungenisa okuqondile kuyindlela yokuhlanganisa uma kufanele kutholakale ngokwezinye izindawo. Uma umuntu wenza ukucabanga ngokusebenzisa le micwephe enkulu, bezothola ukubhembatha okubona okuningi futhi okuphezulu kahle kumaqembu. Kunezinhlobo eziningi zokuthuthukiswa kwabo abathanda ukuthuthukisa amakhono. Iindlela ezifundeni, imibhobho ye-YouTube, futhi amakhalefu emakhanda ekhaya ayenza amathuba aphakathi kwezibonelo ezaziwa ngabafundi futhi kwezibonelo abakhulume zazo. Ukucabanga ngokusebenzisa izindlela nezinhlobo ezahlukene kuyindlela yokuthiwa ukubhembatha okuphumelelayo okungatholakali noma ngizinyanga eziyisithupha.
Ukanelwa kuMakhasi weNtshonalanga yokuhlanganisa Izitekhniki
Ukuthi uqale ukuxhumiwa kumagrupi wokwenza kunceda amandla okuhlangana nabanye abantu baphawule amathiphu ngokuhlelwa kwezinkanyezi. Le magrupi nguqulela amathunzi aphakathi kwezikhokelo zabo zokuhlanganisa izinto ezithengiweyo, yaye kwenza amandla apho abasebenzisa le ndlela bathola amathiphu kubantu abanye ngokuvamile. Abaningi lezo ngcamango balela izikhululo ngokuphelele kwezinkinga ezijwayelekile kuye kwezindlela zokuhlelwa eziphambene, okunceda ukuba baphumelele kanye nobuthando kule ndlela. Ukuxhumiwa kubo kunceda ukuthola ukwazi olukhulu olutholakale kungathi kunguqulela kakhulu umehluko owenzekayo kumiseko wakho ngokuhamba kwesikhathi.
Imibuzo Evame Ukubuzwa
Yiziphi izindlela ezingcono zezimachini zokuqamba zamadoda?
Izimachini zokuqamba zamadoda zingenhla ukuzilima ngokuzenzekela, ukuphelwa okucophelela, izinhloso eziningi zokulondoloza izinhlobo ezinhle, amagatsheli aphathwe khona, nezinyathelo ezijwayelekileyo.
Kungakanani iteknoloji ye-AI iyasebenza kuzimachini zokuqamba?
Itenkolo ye-AI ikuncela ekujikezeni nokulungisa, ukuqinisekisa ukuthola ngokushesha ukupheli kwamaphepha fanye nokulungisa ngokuzenzekela, ngaleyo ndlela ukuthola okuningi komphumelelo faye ukunciphisa ukungena.
Yimaliphi enkulu ye-IoT connectivity kumakhina wokubhembetha?
IoT connectivity ikuvumela ukulayisha amadizayini nangaphandle nokuphepha, kube lula ukusebenza kanye nokuxhumana phakathi kwemindawo ehlukene, ngaleyo ndlela kakhulu ukwenza inqubomgomo.
Imiphumela yamamotolo ethintekayo yokusebenzisa imali engaphezulu iyini?
Amamotolo ethintekayo yokusebenzisa imali engaphezulu ayindlela yokunciphisa isebenza samanzi nezindleko zokusebenzisa futhi iyonakalisana nokuthanda ukwenziwa kwezimali ezifisayo, okuvikela izisolutions eziphezulu zokubhembetha.
Kungani kufanele ningathanda xa unguqula ukukhetha umkhomba wokubhembetha?
Uthande lokhu kakhulu: isivinini sokubhembetha, ubukhulu bendawo yokubhembetha, ukutholakalwa kwesoftwere, umehluko wezidazeni, futhi ukuthi uyishiqise kakhulu kumaseponti noma endlini. Lezi zinto ziyakuvikela ukuthi zizonke ukudinga kwakho.
Uhlu Lwezinto Eziqukethwe
- Imigomo Emyeni Yezinhlangothi Zamanje Zomsebenzi Wembhujiswa Noma Ukucaciswa
- Ukulandela kwezibonelo ekuhlukaneni
- Iindlela Zokusetshenziswa Eziphumelelayo Ngokubanzi
- Ukukhetha i-Machine Ehlukileyo Kulokho Okudingekayo
- Imithombo evela kuleli gama ngokubhobha
- Ukulungiswa nokuthuthukiswa kwempiyeni
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Imibuzo Evame Ukubuzwa
- Yiziphi izindlela ezingcono zezimachini zokuqamba zamadoda?
- Kungakanani iteknoloji ye-AI iyasebenza kuzimachini zokuqamba?
- Yimaliphi enkulu ye-IoT connectivity kumakhina wokubhembetha?
- Imiphumela yamamotolo ethintekayo yokusebenzisa imali engaphezulu iyini?
- Kungani kufanele ningathanda xa unguqula ukukhetha umkhomba wokubhembetha?