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Txuag ib puag ncig! Koj tuaj yeem ua tau, thiab peb tuaj yeem ua tau!
Cov pa phem yas tau ua teeb meem loj rau kev lwj. Yog tias koj tuaj yeem google nws, koj tuaj yeem tshawb nrhiav tons ntawm tsab xov xwm lossis duab los qhia seb peb ib puag ncig cuam tshuam li cas los ntawm cov pov tseg yas. Nyob rau hauv teb rau cov pa phem yas ...Nyeem ntxiv -
Yas degradable
Taw qhia Cov yas degradable yog hais txog ib hom yas uas nws cov khoom muaj peev xwm ua tau raws li cov kev xav tau ntawm kev siv, kev ua haujlwm tseem tsis hloov pauv thaum lub sijhawm khaws cia, thiab tuaj yeem degraded ...Nyeem ntxiv
