Raws li ib txwm muaj, ob qho khoom siv hluav taws xob thiab cov khoom siv tsis yog hluav taws xob tau teeb tsa hauv thaj chaw muaj peev xwm tawg tau yuav tsum tau ntawv pov thawj tawg pov thawj.
Yog koj muaj lus nug, nws yog ib advisable mus sab laj nrog cov ntawv pov thawj lub koom haum. Lawv tau paub zoo nyob rau hauv cov ntaub ntawv pov thawj tawg-pov thawj thiab cov txheej txheem kev cai thiab tuaj yeem muab cov neeg siv khoom nrog kev pabcuam ib-nres suav nrog kev tsim hluav taws xob tawg., kho kom raug, kuaj, thiab ntawv pov thawj.