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Tsev Dhau phab 12 Sab tom qab no Rau sab kawg 1/2
Yog tias koj tab tom nrhiav kev lag luam zoo los ntawm lub qhov rooj hlua khi, txais tos kom yuav tsum tau txais kev pabcuam valve ntawm tus nqi zoo ntawm no. Paub hais tias yog ib qho kev tawm tsam cov chaw muag khoom thiab cov khoom lag luam nyob hauv Suav teb, peb lub hoobkas tseem muaj cov qauv dawb rau kev kuaj xyuas.