Vim li cas peb yuav tsum siv cov tshuab lim dej? Nws yog vim hais tias cov dej zoo nyob rau hauv ntau qhov chaw muaj kev txhawj xeeb tiag tiag, ua ntej, peb yuav tsum tau kawm los txiav txim qhov dej zoo. Ua ntej tshaj plaws, muaj ob qhov laj thawj tseem ceeb rau cov dej tsis zoo, ib qho yog qee qhov chaw sab qaum teb lossis thaj chaw muaj kuab lom ntau dua, yuav tsom mus rau ...
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