动词
中文翻译：扫描
同义词：
['examine', 'scrutinize', 'scan through']
例句：
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1. I need to scan the documents beforewe submit them.
我们需要在提交之前扫描这些文件。
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2. The police scanned the crowdfor any suspicious activity.
警方对人群进行了扫描，寻找任何可疑活动。
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3. She scanned the room for her lost keys andfound them under the sofa.
她扫描房间寻找她的丢失的钥匙，并找到了它们。