rèn zhēn zǐ xì yán jiū guò

认真仔细研究过

Meaning

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Authentic Video Examples for “认真仔细研究过”

1 example clips
我是认真仔细研究过的呀
HSK 1
0:03s
wǒ shì rèn zhēn zǐ xì yán jiū guò de yathoroughly.

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