Txhua yam khoom uas tuaj yeem ua rau huab cua tsis zoo yog cov pa phem.Muaj tej yam ntuj tso (xws li hluav taws kub hav zoov, hluav taws kub tawg, thiab lwm yam) thiab cov khoom tsim los ntawm tib neeg (xws li kev lag luam emissions, hluav taws xob hluav taws xob hauv tsev, hluav taws xob tsheb, thiab lwm yam).Lub tom kawg yog m...
Nyeem ntxiv