Taw qhia: Putty hmoov yog cov khoom siv ntau yam siv dav siv rau kev txhaws qhov, tawg, thiab qhov khoob ntawm ntau qhov chaw xws li phab ntsa thiab qab nthab. Txawm li cas los xij, ib qho ntawm nws qhov tsis zoo yog qhov tsis zoo rau dej, uas tuaj yeem ua rau nws qhov kev ua tau zoo thiab lub neej ntev. Txhawm rau daws qhov teeb meem no, hydroxyp ...
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