1.Txhua lub hnab ntim kas fes yuav tsum tsis muaj cov khoom siv kas fes ntxiv lossis cov tawb lim. Txhua yam koj xav tau yog lub khob dej kub thiab ib lub hnab ntim kas fes kom tiav cov txheej txheem brewing, uas yooj yim thiab nrawm.2.hygiene: dai
Lawv pab neeg zoo ua raws cov txheej txheem. Lawv paub yuav ua li cas kom yooj yim qhov nyuaj, thiab muab peb nrog kev ua haujlwm loj dua nrog kev nqis peev me.