Ua ntej - Cov teeb meem ntawm qhov ncauj: Ua tsis taus pa, Hniav pob zeb, Hniav Plaque thiab lwm yam · Txoj kev ntxuav: Yog hais tias nws yog pob zeb hniav, hniav plaque loj heev, nws raug nquahu kom mus tom tsev kho mob kom huv si;Tsis tas li ntawd, koj yuav tsum txhuam koj cov hniav txhua hnub, siv dej ntxuav thiab ntxuav s ...
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