名词
中文翻译：锁定
同义词：
['lock', 'secure', 'fasten', 'lock down']
例句：
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1. The car was locked and the keys were missing.
汽车被锁上了，钥匙丢了。
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2. He fastened his seat belt before leaving the car.
他离开汽车前系好了安全带。
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3. The police have locked down the area to prevent further incidents.
警方已封锁该区域以防止进一步的事件发生。