HSK 7-9
冲撞
chōngzhuàng动
to collide; jerking motion; to impinge; to offend
海浪不断冲撞岸边岩石。
Hǎi làng bú duàn chōng zhuàng àn biān yán shí.
Waves kept pounding the rocks along the shore.
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Appears across levels (7-9) in the HSK 3.0 word list.