Knock on wood: 这个短语的意思是指人们用手指来敲击木头以企盼幸运降临。在英国，“touch wood”也表示盼望有好运。A: I’m hoping to get an “A” in my mathstest.

B: Knock on wood (Touch wood) , so am I.

All good things come to those who wait:只要耐心等待，好运终将到来。

A: It’s been two days since that big company has contacted me. Why haven’t they called?

B: Take it easy. All good things come to those who wait.

Lucky dog:千万不能直译哦！lucky dog的真正意思是指“幸运儿”。

A: John has just won the lottery. B: He’s a lucky dog.

Lucky break: 这个短语是“幸运，称心如意”的意思。

A: I thought you didn’t have any money?

B: I didn’t, but I just got a lucky break.My insurance company has sent me that check I was waiting for.

On a roll: 指“连连获胜中，连续交好运”，这样的日子恐怕是每个人都期待的吧！

A: Mike Smith won one game after another. B: It was obvious he was on a roll.

Coming up roses: 这个短语的意思是“结果良好，一切顺利”。

A: How are things with your new girlfriend?

B: Since I meet Tina, life is wonderful. Everything’s coming up roses.

As luck would have it: 这个短语指的“非常幸运地”。

A: What happen when you got there?

B: By the time we arrived, as luck would have it, the fight was over.

In a pickle: 指处于困难的境地。

A: You look like you are in a pickle.How did you get your hand stuck in that hole?

B: I was trying to fix the drain.

Bad hair day: 这个短语指的是“运气不佳，不走运”。

A: Since I got out of bed this morning,nothing is going right.

B: It looks like you’re having a bad hair day.

Tough/hard luck: 这是“坏运气，霉运”的意思。

A: I betted $100 for England to win the World Cup.

B: That’s tough luck for you. They lost.

Down on one’s luck: 这是俚语用法，意思是“倒霉的、不走运的”。

A: I have heard that Bill has no money or job.

B: Yes, that’s right. He’s really down on his luck.

It never rains but it pours: 这句话字面上的意思是，要么不下雨，一下雨就大雨倾盆。实际上是说“事情（通常是指不利的事）不发生则已，一发生就接二连三地来”，简单来讲，就是指“祸不单行”。

A: So you had your car broken in to,then you crashed it?

B: Yes, I had a terrible day. You know what they say: It never rains but it pours.