【句子】My allergies are acting up again.【Modern Family S03E05】
【发音】/maɪ/ /ˈæl.ə(r).dʒiz/ /ɑː(r)/ /ˈæk.tɪŋ/ /ʌp/ /əˈgeɪn/ 【发音技巧】allergies are连读；acting up again两处连读；
【翻译】我的过敏又犯了。/我又过敏了。
【适用场合】
今天我们来学习一个很简单的短语act up, 一起来看一看它都有哪些意思：

1. If a machine or part of your body acts up, it does not work properly.
If a machine or part of the body acts up, it does not perform as well as it should.
机器运转不正常，或者身体出毛病

eg: My car always acts up in cold weather.
天气一冷，我的车总容易出故障。

eg: Her shoulder was acting up.
她的肩膀那会疼得厉害。
当时她的肩膀不舒服。

eg: She was messing with the coffee pot, which was acting up again.
她当时正在捣鼓那个咖啡壶，那玩意儿又坏了。

eg: My left knee acts up in damp weather.
我的左膝盖一到潮湿天气就疼痛不堪。

eg: Her arthritis is acting up again.
她的关节炎又犯了。

eg: The computer is acting up again.
这电脑又出问题了。
这电脑又坏了。

2. If children act up, they behave badly.
（孩子）调皮，捣乱

eg: Sophie got bored and started acting up.
Sophie感觉到无聊了，开始调皮捣蛋了。

eg: I could hear Jonathan acting up downstairs.
我能听到Jonathan在楼下捣蛋。

eg: He’s a tough kid and he acts up a lot.
他是个很难管的孩子，特别调皮捣蛋。

【尝试翻译以下句子，并留言在文章留言区】
The engine began to act up when we were miles from anywhere.