Yuav ua li cas kos ib khob dej, iav nrog mem hluav ib kauj ruam

Zaj lus qhia no muaj ob daim yeeb yaj kiab uas qhia txog cov txheej txheem ntawm kev kos iav siv tus piv txwv ntawm ib khob dej. Thawj daim vis dis aus yog yuav ua li cas kos lub khob dej ntsej muag, qhov thib ob yog yuav ua li cas kos ib khob dej thiab straw nrog mem hluav ib kauj ruam. Cov yeeb yaj kiab no tau nthuav dav heev, tag nrho cov txheej txheem kos duab tau pom, txhua yam tuaj yeem pom zoo, lawv tau teeb tsa hauv HD zoo.