短语
中文翻译：锁住
同义词：
['be locked up', 'keep in check', 'hold fast']
例句：
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1. The thief was caught by the police with all his loot locked up in a safe.
这个小偷被警察抓住了，他的赃物都被锁在保险箱里。
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2. The old man locked up his grandson in the attic when he left for work.
老人离开工作时，把他的孙子锁在了阁楼里。
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3. She locked up her valuable documents in a safe before leaving the office.
她离开办公室前，把她的重要文件锁在了一个保险箱里。