| 词组 | act up |
| 释义 | act up 1. act up to behave badly - used especially about children: ▪ He was always acting up in class and caused his teachers no end of trouble. ▪ McEnroe developed something of a reputation for throwing tantrums and acting up on court. ■ SIMILAR TO: ↑play up BrE informal 2. act up informal if a part of your body acts up, it starts to hurt or stops working properly: ▪ My elbow started acting up again, and I had to stop playing. ■ SIMILAR TO: ↑play up BrE informal |
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