介词短语
中文翻译：在
同义词：
['be under the cover of', 'in the shadows of']
例句：
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1. She hid under the cover of darkness to avoid being seen.
她趁着黑暗躲起来，以免被看见。
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2. The thief was caught by the police under the cover of night.
这个小偷被警察在夜晚抓住了。
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3.They were able to sneak into the building under the cover of darkness.
他们趁着黑暗溜进了大楼。