| 单词 | sit up (and do sth) |
| 释义 | ● ˌsit ˈup (and do sth )(informal ) to start to pay careful attention to what is happening , being said , etc .关注起来；警觉起来◆ The proposal had made his clients sit up and take notice . 这项建议引起了他的主顾们的关注。See also sit |
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