Qhov no muaj cov xim dub thawv yog qhov ntau thiab feem ntau siv.Solid xim nrog qee cov ntawv nyeem cov khoom lag luam, tuaj yeem ua tiav qhov kev tshaj tawm kev ua tau zoo.Qhov no tuaj yeem siv los ua daim npav, lossis daim duab, lossis lwm yam khoom me me uas koj xav tau los tso.
