Qhuav hmoov hluav taws tua hluav taws

Qhuav hmoov hluav taws tua hluav taws

Ua hauj lwm hauv paus ntsiab lus qhuav tshuaj tua hluav taws tua hluav taws feem ntau cuam tshuam cov tshuaj tiv thaiv ntawm daim duab peb sab hluav taws.Niaj hnub no hom tshuaj tua hluav taws uas siv ntau tshaj plaws yog cov tshuaj siv tshuaj qhuav uas siv tau rau cov hluav taws kub hauv chav A, B, thiab C.Tus neeg sawv cev no tseem ua haujlwm los ntawm kev tsim qhov thaiv ntawm cov pa oxygen thiab cov roj ntawm cov hluav taws hauv Class A.Ordinary qhuav tshuaj yog rau chav B & C hluav taws kub xwb.Nws yog ib qho tseem ceeb uas yuav tsum tau siv lub tshuab tua hluav taws kom raug rau hom o ...

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