zero hour
发动进攻的时刻，关键时刻
Well, it's almost zero hour for the graduation party.
好了，毕业舞会开始的时刻差不多到了。

go one better
胜过
My English is good and I want to go one better next year.
她英语学得不错，希望明年更上一层楼。

two peas in a pod
一模一样
The twins are as alike as two peas in a pod.
这对双胞胎长得象一个豆荚里的两颗豆子。

give sb. the third degree
不断地质问拷问盘问一个人
Why is it I get the third degree from you every time I come home late?
为啥我每次一回来晚你就要不停的盘问我？

on all fours
四脚着地的;在地上爬
He got down on all fours to play with his grandson.
他趴在地上和孙子玩。

take a five
休息一下
Let's take a five.
我们休息一下吧。

sixes and sevens
迷茫的，慌张的
I was all sixes and sevens when I could not find my phone.
我很慌张，当我找不到手机的时候。

behind the eight ball
处于不利地位
I'm really behind the eight ball at work. I have too much work to do and so little time.
我现在工作上处于不利地位。很多工作要做，时间又很紧。

on cloud nine
非常开心
I was on cloud nine after hearing the good news.
听到这个好消息后，我兴奋了好几天。