Ntuj Hloov 5 yam teeb meem ntawm txhua yam nyob ib puag ncig uas peb yuav tsum xav txog (5 environmental problems) 5 yam teeb meem ntawm txhua yam nyob ib puag ncig uas peb yuav tsum xav txog. (5 environmental problems we to consider) 5 yam teeb meem no yog 5 yam uas ua teeb meem rau lub ntiaj teb zim txwv no, yog
Tus neeg laus uas nws ua hauj lwm pab neeg ntawm Kav Tos Liv hais tias ; kev txiav kev pab ua rau kev txom nyem nyob Kos Lim Pej txhab ntxiv
