1. You won't get away with this.

你逃不掉惩罚的。

get away with sth. 不因某事受惩罚。

get away有时候还指“脱不开身”。例如：

I'm afraid I can't get away. 恐怕我脱不开身。

2. I'm tired of going to school day after day.

我厌倦每天上学。

之前说过了be fed up with. 其实这里的tired也可以换成sick。例如：

I'm sick of waiting around like this.

我讨厌透了像这样在一旁等着。

3. Who am I supposed to see?

我应该去见谁？

4. His idea is childish.

他的想法很幼稚。

5. I need small change.

我需要零钱。

零钱是small change，那么大钱就是“larger one”。

6. Don't try to brainwash me.

别想给我洗脑。

7. I don't seem to have any luck today.

我今天运气不好。

8. That reminds me.

那提醒了我。

remind sb. of sth. 提醒了某人某事。再如：

I feel it is absolutely necessary for me to remind him of the meeting today.

我觉得绝对有必要提醒他今天要开会。