HSK 7-9
查明
chámíng动
to investigate and find out; to ascertain
调查组已经查明事故原因。
Diào chá zǔ yǐ jīng chá míng shì gù yuán yīn.
The investigation team has ascertained the cause of the accident.
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Appears across levels (7-9) in the HSK 3.0 word list.