There's a bolt on the door.

门上有把闩.

《简明英汉词典》

Croft pulled back the bolt on his machine gun and rammed it home.

克洛夫特把机枪枪拴一按,顶上了膛.

辞典例句

Simple bolt - on mount provides positive actuator support and alignment.

简易的螺栓安装方式,提供积极有效的执行机构支撑和对齐.

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The pothole fractured a bolt on the axle.

壶穴使车轴上的一只螺钉破碎.

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DURABILITY. Optional bolt - on front bumper.

耐久性: 锁销式前保险杠(备选件).

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The carved slabs of wood with bolt - on necks were made to be abused.

砖头一样雕刻而成的琴体和栓上的琴颈就是为了滥用而打造的.

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