钻研 zuānyán

Do you know how to translate the chinese word 钻研? The pronunciation in pinyin is written zuānyán or zuan1yan2.

Click on the character for more details:

      zuānyán
1 .tone
zuān
2 .tone
yán

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sān qiān líng jiǔ shí jiǔ
3099
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liúchuán
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