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
Bangkok thiab Phnom Penh sib hais ntxiv mus, kom tau txo tej kev tsis sib haum xeeb nyob ntawm ciam teb.
