动词短语
中文翻译：保持警惕
同义词：
['be on the lookout for', 'keep an eye out for']
例句：
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1.We need to keep our eyes peeled for any suspicious activity in the area.
我们需要保持警惕，留意该地区的任何可疑活动。
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2.The police were keeping their eyes peeled for a suspect in the city center.
警方正在密切监视市中心的一名嫌疑人。
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3.The farmers kept their eyes peeled for signs of frost in the fields.
农民们保持警惕，寻找田地里霜冻的迹象。