yuav siv qhov nqus cov raj dab?
Rau cov khoom no, koj ua ntej yuav tsum tau ua kom tiav rau hauv koj cov khoom. Thaum tus neeg siv nws siv, koj yuav tsum tau xub muab kauv taub hau lub taub hau. Yog hais tias nws yog khau polish, piv txwv li, peb yuav tsum tau xa tus nqus cov taub hau thiab tom qab siv cov khau polish rau khau. , thiab siv ib lub voj voog rau smear, tsho, npog, tos kom txog thaum lub sijhawm tom ntej.
