1. Me me hneev taw Nws muaj qhov yuav tsum tau ntawm thaj chaw me me, tsis txwv los ntawm lub sijhawm.Nws muaj qhov yuav tsum tau ntawm thaj chaw me me, cov txheej txheem yooj yim ntws, tsis txwv los ntawm lub sijhawm.Nws tuaj yeem haum rau yuav luag txhua lub sijhawm.2. Tsawg sludge Tib lub sijhawm, hauv qab co...
Nyeem ntxiv