1.To rock the boat
指的是“找麻烦，或者让人感到厌烦”。人们往往会劝别人不要去找麻烦，比如下面是两个人在办公室里谈论一个很偷懒的同事：
Sure, I agree Smith isn't worth the big salary he gets, but I wouldn’t tell the boss if I were you. Smith is one of his favorites, and he’ll think you're just rocking the boat and making trouble. 当然，我同意斯密斯根本没有资格拿那么高的工资。但是，要是我是你，我就不会把这种想法告诉老板。斯密斯是他的亲信之一。你要告诉他的话，他会以为你想找麻烦呢。

2.On cloud nine
我们都会说一个人高兴得都找不到北了，高兴得走路轻飘飘就好像腾云驾雾、到了九天云外一样，这样子在英语中有一个很传神的习语来形容，就是 on cloud nine。比如：
I've been on cloud nine all day long - I heard this morning that I got an A on my final biochemistry exam.
我今天一天都很高兴，因为我早上听说，我生物化学期末考试得了一个A。

令人高兴的事是层出不穷的，下面这位太太也是很高兴，至少她的先生是这么说的：

My wife has been on cloud nine since I told her the other day I would spend my year-end bonus at the office to take us to Hawaii to celebrate our twentieth wedding anniversary. And to tell you the truth, I'm really looking forward to it myself.

我那天告诉我的妻子，我要把办公室发给我的年终奖金用来和她一起去夏威夷旅行，以庆祝我们结婚二十周年。自从那天起，我太太一直很高兴。说实话，我自己也非常想去。