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Tsev ntxhua khaub ncaws

Cov ntxhua khaub ncaws ntxhua khaub ncaws kev daws teeb meem

Tsawg peev nyiaj, tsis muaj nyiaj txiag siab, yooj yim thiab nrawm, los tsim cov tshuab ua lag luam kom haum rau cov tsev kawm ntawv thiab chav tsev.

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Solution system daim duab

Cov khoom lag luam zoo

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Siab huv

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Tsawg tawg

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Zog Txuag

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Zoo heev

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Zoo ruaj khov

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Kev Kub Ceev

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Kev nojquag

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Tsawg Zog Kev Siv Hluav Taws Xob