1. Siv lub lwv los txhuam hauv cov ntug me ntsis kom yooj yim tshem tawm cov cim. Vim tias qhov sib txawv ntawm qib kev nplaum thiab sijhawm, siv cawv + lwv los so, cov nyhuv yuav zoo heev.
2. Rau kev ntxuav cov nplaum ob npaug, koj tuaj yeem siv daim ntaub qhuav so hauv cov kua txiv hmab txiv ntoo los npog tag nrho ob tog ob daim nplaum. Tom qab ob-sided nplaum cov cim tau ntub tag, koj tuaj yeem tshem tawm lawv tau yooj yim nrog tus pas ntsuas.
3. Thaum tshem cov xim av, siv cov dej txhuam los yog kua txiv los txhuam cov cim lossis cov xim ntawm daim kab xev ob sab. Qhov txiaj ntsig zoo tshaj plaws tshem tawm cov stain tuaj yeem tau txais thaum cov stains tau so tawm.
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