Cov ntaub qhwv ncab lossis cov yeeb yaj kiab ncab, qee zaum hu ua pallet qhwv, yog cov khoom siv uas ncab tau zoo heevzaj duab xis yasuas qhwv ib ncig ntawm cov khoom. Qhov rov qab ua kom cov khoom khi ruaj khov.
