Lub hau npog yog ib qho ntawm cov khoom seem uas muaj txiaj ntsig zoo hauv cov cuab yeej siv tshuab.Thaum nws tiv thaiv thiab kho lwm yam khoom siv sab hauv, nws tuaj yeem ua haujlwm xws li ua kom zoo nkauj, tsis muaj plua plav, thiab tsis muaj dej.Kab lus no yuav qhia koj qee yam ntawm cov txheej txheem tsim khoom, kev siv khoom, kev ua haujlwm ...
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