| 单词 | keep a sharp lookout |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔lookout〕When you're driving, keep a sharp lookout (=watch extra carefully) for cyclists.开车时要特别注意骑自行车的人。朗文当代〔while〕The bird hopped across the lawn, keeping a sharp lookout all the while.小鸟在草坪上跳来跳去，一直保持着高度警惕。牛津搭配 |
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