Tshawb nrhiav lub luag haujlwm tseem ceeb ntawm kev tshem tawm hauv cov tsheb thauj khoom hnyav.Kawm txog hom, tuning, thiab hloov kho kom zoo dua rau kev tuav, ruaj khov, thiab muaj peev xwm thauj khoom.Nyob rau hauv lub ntiaj teb ntawm cov tsheb thauj khoom hnyav, kev ua tau zoo tsis yog ib qho kev xav tau, tab sis yog qhov tseem ceeb.Cov tsheb muaj zog no yog ...
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