1. get the hang of进入状态，摸到窍门

I think if I practice serving a couple of times, I’ll get the hang of it.

我想如果我多练习几次发球，我就会魔到窍门了。

2. out to lunch神经病，神志不清

Richard stands on his head in the shower. He’s really out to lunch.

理查德在浴室倒立。他真是有病。

3. rap sheet犯罪记录，前科

This isn’t his first offense. He has a rap sheet a mile long.

这不是他第一次犯罪，他前科累累。

4. red tape官样文章，繁琐的程序

I need this information as soon as possible. See if you can cut through the red tape.

我要尽快拿到这份文件。看能不能缩短申请的程序。

5. a fair shot相当大的希望

You have a fair shot at the scholarship.

你很有希望能拿到奖学金。