| 释义 |
act up- [口语]
- (汽车、机器)运转不正常；失灵；出毛病：
The car's engine is beginning to act up. 汽车发动机在开始失灵。 - (身体某部分)疼痛起来，作痛，(疾病)发作：
His stomach acted up after dinner. 饭后他的胃病发作了。 - 举止不端；捣蛋，调皮；任性，使性子，耍脾气，发怒：
The children have been acting up all evening. 整个晚上孩子们都在调皮捣蛋。 - 做出适当的反应，适当地做出反应：
When the girls tease him,he doesn't quite know how to act up. 姑娘们拿他逗乐时，他就没辙了。 - 炫耀，表现：
The kid likes to act up for the benefit of anyone who cares to notice. 这孩子喜欢做各种动作来惹人注意。
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