sharpen up your act idiom
改进…的行为（或表现）
to improve your behaviour or performance
He really needs to sharpen up his act, or he'll never get to university. 他确实需要改进自己的表现了，否则绝对上不了大学。
| 单词 | sharpen up your act |
| 释义 | sharpen up your act idiom 改进…的行为（或表现） to improve your behaviour or performance He really needs to sharpen up his act, or he'll never get to university. 他确实需要改进自己的表现了，否则绝对上不了大学。 |
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