其实监狱有两把锁，一把内锁，一把外锁。

Now this jail has got two locks, one inside, one outside.

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我院设计的外锁闭道岔系统荣获全国第四届优秀工程标准设计金奖。

External-locked switch system designed by our institute won the standard design gold medal of the Fourth National Excellent Projects.

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当你在一个平衡的内锁位置上尝试探身去抓下一个点的时候，考虑先降低重心至一个外锁的状态，以扩大视野范围。

When leaning out to look for your next holds from an NBP lockoff, consider first lowering to a lockout, to extend visual range.

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and everyone, you know, when people are locked out, they get helped.

如果有人被锁在了宿舍楼外，他们一定会得到帮助。

关于宿舍制度 - SpeakingMax英语口语达人