Thaum ua kev txhaj tshuaj loj loj, qee zaum cov khoom lag luam tuaj yeem ntsib cov kab nrib pleb, uas tsis yog tsuas yog cuam tshuam rau qhov zoo ntawm cov khoom, tab sis kuj cuam tshuam rau qhov zoo ntawm cov khoom. Yog li vim li cas thiaj li tawg tsis xws luag tshwm sim? Cia peb qhia luv luv rau txhua tus hauv qab no.
1. Qhov kev faib ua feem ntawm cov khoom siv rov ua dua ntxiv rau cov khoom siv raw yog qhov loj, ua rau muaj qhov loj me me ntawm cov khoom siv raw lossis cov khoom siv tsis sib xws;
2. Cov khoom siv yas yas muaj kuab paug, tsis muaj kuab lom, lossis qhuav tsis zoo;
3. Kev tsim qauv tsis tsim nyog, qhov me me demolding txoj kab nqes, nyias cov khoom phab ntsa nrog cov ces kaum ntse thiab qhov tsis zoo, ua rau muaj kev ntxhov siab;
4. Lub sijhawm tuav thiab txhaj tshuaj luv luv, lub sijhawm txias txias ntev lossis luv luv;
5. Tsawg los yog tsis sib xws pwm kub, qeeb txhaj tshuaj ceev, thiab tsis tshua muaj siab;
6. Cov txheej txheem tsim tsis tsim nyog, kev ntxhov siab siab, thiab tsis zoo ejection;
7. Kev siv tsis raug ntawm kev tso tawm cov neeg ua haujlwm, qhov tsis sib xws tom qab cov khoom demolding, thiab lwm yam.