HSK 7-9
尖锐
jiānruì形
sharp; intense; penetrating; pointed
金属摩擦发出尖锐声响。
Jīn shǔ mó cā fā chū jiān ruì shēng xiǎng.
The rubbing metal produced a piercing sound.
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Appears across levels (7-9) in the HSK 3.0 word list.