Koj tuaj yeem xav nug:
1. Qhov loj npaum li cas ntawm 40 daim duab plaub
Teb: Txhua daim duab plaub yog 3/4 nti los ntawm 1 3/4 nti
2. Cov pwm no puas ci ntsa iab ntawm sab hauv lossis matte?
Teb: ci iab, yooj yim tawm ntawm pwm.
3. Cov khoom siv yog dab tsi?
Teb: Nws yog cov khoom siv silicone, qib zaub mov
4. Nws puas tuaj yeem siv rau ncuav mog qab zib?
Teb: Yog, nws tuaj yeem siv rau ncuav mog qab zib