1.challenge v.向……挑战
They had challenged and beaten the best team in the world.
他们曾向世界上最强的球队挑战并将他们打败。
【拓展】challenge也可以做名词，意为“挑战”，常用短语 rise to the challenge 意为“接受挑战”
He could be expected to rise to the challenge.
他会奋起应战的。

2.teach a lesson 教训一顿
We've decided to teach him a lesson.
大家决定治治他。

3.stew v. 忧虑
I don't want to stew for that thing.
我不想为那件事忧虑。
【常用搭配】stew in one's own juice 自作自受
Let him stew himself in his own juice.
让他自食其果好了。

4.let go of 松手, 放开
`Let go of me!' he squeaked nervously.
“放开我!”他紧张地尖声嚷道。

5.suit oneself 按自己意愿做事
Suit yourself. It's all we serve.
随便你啊！我们这里只供应这个。