HSK 7-9
敏锐
mǐnruì形
keen; sharp; acute
记者敏锐地发现了矛盾之处。
Jìzhě mǐnruìde fāxiàn le máodùn zhī chù.
The reporter keenly spotted the inconsistency.
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Appears across levels (7-9) in the HSK 3.0 word list.