xiū dìng gǎi dìng fāng àn

修订改定方案

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Authentic Video Examples for “修订改定方案

1 example clips
战车修订改定方案图纸
HSK 1
0:03s
zhàn chē xiū dìng gǎi dìng fāng àn tú zhǐThe revised tank design blueprints.

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