Don't fiddle with the rifle bolt.

别搬弄枪栓.

《现代汉英综合大词典》

He heard a bolt snick as it was pulled back.

他听到枪栓往后扳的卡嗒声.

辞典例句

His hand felt for the bolt of the machine gun.

他的手摸到了机枪的枪栓.

辞典例句

Andres had flattened at the click, the top of his head hard against the ground.

安德烈斯听到枪栓声,立刻卧倒, 头顶狠狠地抵住地面.

辞典例句

I cocked the old gun and squeezed the trigger.

我扳起这把老枪的枪栓,按下了扳机.

互联网

BOLT the breech block or breech bolt that seals breech end of barrel.

密封枪管尾部的枪栓或闭锁装置.

互联网