A: Hi Jack. You look upset. What's the matter?

B: There will be a parents' meeting in our class this Saturday and I'm worried about it.

be worried about...“对...感到担心”

A: Why? We can leave school earlier that day.

B: I didn't do well in last exam. If my father knows it, he will beat me up. 

A: I can't believe it. My parents never beat me. 

B: You know that my father is irritable. 

irritable/ˈɪrɪtəbl/易怒的；暴躁的

A: You can ask the teacher for help.

ask sb for help“向某人寻求帮助”

Translation:

A: 杰克，你看起来很苦恼，怎么了？

B: 这周六咱们班要开家长会，我很担心。

A: 为什么？我们那天还可以早点放学呢。

B: 我上次考试考得不好，如果爸爸知道他会打我的。

A: 我真不敢相信。我父母从来不打我。

B: 你知道的，我爸爸脾气很暴躁。

A: 你可以向老师求助。

B: 好主意。

B: Good idea.