act up

出毛病, 运转不正常, 耍脾气, 捣蛋

例句与用法：

The engine began to act up and he thought he would have to hit the silk.

引擎开始失灵，他心想非要跳伞降落不可。

Continually heavy rain made some rivers act up.

连续不断的大雨造成一些河流泛滥。

The car acted up because the spark plugs were dirty.

汽车出毛病是因为火花塞脏了。

The car's acting up again.

这辆汽车又出毛病了。

详细释义：

1. 调皮; 任性

The dogs acted up when a stranger entered the front yard.

有陌生人走进前院时, 狗就开始又叫又跳。

The boy is fond of acting up with him.

这男孩喜欢和他一同捣蛋。

2. 出毛病

My car has been acting up again.

我的车子又出问题了。

The car's engine began to act up.

汽车的发动机开始出毛病了。