1. Expression：knuckle sandwich

Explanation：A punch in the mouth. （一记老拳，迎面一拳）

Example：This chap deliberately jostled Wally so he turned round and gave him a knuckle sandwich.

这小伙子故意挤了一下澳利，于是澳利转过身来猛地给了他一拳。

If you don’t stop bothering me, I’m gonna give you a knuckle sandwich.

你要是还来烦我，我就当嘴给你一拳。

If you keep mocking me, you're going to get a knuckle sandwich!

如果你继续嘲笑我，我就给当嘴给你一拳。

情景对话：

A: Hi, man. I heard you were scratched by your wife at the bar. Is is real?

嗨,老兄。我听说你在酒吧被你老婆抓伤了，是真的吗?

B: Sorry, I am quite busy now. I don’t have time talking to you.

对不起，我现在很忙，我没有时间和你说话。

A: Come on, dude. Tell me about it.

快点儿，你这家伙，告诉我怎么回事。

B: I warn you to shut up. Otherwise, you’ll be given a knuckle sandwich!

我警告你闭嘴，否则，小心吃我一拳。

2. Expression：white-knuckled

Explanation：Causing intense fear, anxiety, or stress. （引起强烈恐惧、焦虑或压力的）

Example：My son absolutely loves those white-knuckle roller coaster rides, but I have no stomach for them!

我儿子非常喜欢那种惊险刺激的过山车，可是我对它没胃口。

It was a bit of a white-knuckle moment when the truck came so close to us on the highway.

当卡车在高速公路上离我们如此之近时，这时候是令人非常紧张。

Life in the mountains hardened me until I didn’t feel white-knuckled and felt no weakness in mind or body.

山里的生活使我变得坚强了——我心里再也不感到恐惧，身体也不那么虚弱了。

He said that he got white-lnuckled because these people were not men and women at all, but devils, and that this was an enchanted land.

他说他感到恐惧——说这些人都不是人，而是些魔鬼；说这儿是受了魔法蛊惑的地方。