Cov xim ntawm cov bristles yuav hloov thaum tus txhuam hniav yuav tsum tau hloov.
Cov txhuam hniav tuaj ntau yam xim thiab ntim.
Txhuam txhuam hniav tuaj yeem ua kev pabcuam.
Yooj yim rau hauv cov pos hniav: txhuam hnyav thiab tawv bristles tuaj yeem ua rau koj cov pos hniav.Cov txhuam hniav ntxuav maj mam ua kom cov pos hniav thiab qhov ncauj noj qab haus huv.