Cov kev cai ntawm kev txheej:
1. PVD thev naus laus zis txheej txheem kho kom zoo nkauj zaj duab xis
2. Txheej cov ntaub ntawv pov thawj ntiv tes, tiv thaiv kev ua qias tuaj thiab dej tsis nkag
Cov Ntsiab Lus Tseem Ceeb ntawm Zhenhua Program:
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Muab cov khoom siv txheej thiab kev txhawb nqa kev siv tshuab txheej rau cov chaw tsim khoom lag luam thiab cov neeg siv khoom.
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Muab cov kev daws teeb meem zoo, zoo, thiab pheej yig rau kev tsim kho tshiab tas mus li thiab kev loj hlob ntawm kev lag luam.
