| 单词 | be on the lookout for | 
| 释义 | be on the lookout foridiom variants  or keep a lookout for    : to watch or search for (something or someone) : be alert to  Be on the lookout for flooded roads after heavy rainstorms. The police officer walked through the neighborhood, keeping a (sharp) lookout for any suspicious activity. be on the lookout for phrase variants  or keep a lookout for  as in noticeto be cautious of or on guard against After the storm, the police told the public to be on the lookout for downed power lines. The public should remain vigilant and keep a lookout for any suspicious activity. Synonyms & Similar Words Relevance 
 Antonyms & Near Antonyms 
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