名词
中文翻译：警卫锁
同义词：
['guardian lock', 'watchman lock']
例句：
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1. The guard locked the gates before we entered.
我们进入前，守卫把门锁上了。
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2. Hewas so focused on hiswork that he didn'tnotice the guard locking the doorbehind him.
他太专注于工作了，没注意到守卫在他身后锁门。
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3. Theguard locked the doors and left us alonein the room.
守卫锁上门，让我们独自留在房间里。