动词短语
中文翻译：活塞撞击
同义词：
['pin-down', "strike例句：1. The car's piston pin was knocked out during the accident.（汽车的活塞销在事故中被撞掉了。）2. The mechanic pinned down the faulty piston to fix the engine.（机械师把故障的活塞固定住修理发动机。）3. The pilot pinned down the plane before landing.（飞行员在着陆前将飞机稳住。）"]
例句：
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1. The car's piston pin was knocked out during the accident.
汽车的活塞销在事故中被撞掉了。
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2. The mechanic pinned down the faulty piston to fix the engine.
机械师把故障的活塞固定住修理发动机。
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3. The pilot pinned down the plane before landing.
飞行员在着陆前将飞机稳住。