Yog tias lub log tsheb tsis nyob hauv lub xeev sib npaug thaum dov, nws tuaj yeem hnov thaum tsav tsheb ntawm kev kub ceev.Qhov kev xav tseem ceeb yog tias lub log yuav dhia tsis tu ncua, uas tau cuam tshuam los ntawm lub kauj tsheb co.Tau kawg, qhov cuam tshuam ntawm kev tsav tsheb ntawm qhov ceev yog me me, thiab feem ntau p ...
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