JOJUN TUS NEEG UA HAUJ LWM ZOO TSHAJ PLAWS NTAWM COV KHOOM SIV THERMAL FUNCTIONAL

Ua kom pom tseeb rau kev tso cua sov tawm, kev rwb thaiv tsev kub, kev tsim khoom siv rwb thaiv tsev kub rau 15 xyoo