Xav txog kev ua hauj lwm nyob rau hauv pem hauv ntej ntawm kab ntawm qhov chaw yuav tsum tau sib sau ua ke nyob rau hauv ib tug semi-kaw los yog tag nrho qhib rhiav, tab sis koj kub, koj lub cev yog tawm hws tas li, thiab ib puag ncig lub suab nrov thiab sweltering ib puag ncig ua rau koj chim siab, nws yog ib qho nyuaj rau mloog thiab ua hauj lwm efficiency yuav tsawg.Yog, ...
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