O-8：ones own flesh and blood 骨肉至亲 A:Mrs, Smith, you are always worried about your children. A:史密斯太太，你总是牵挂着孩子。 B:Theyre my own flesh and blood. Its hard for me to see them suffering. B:他们都是我的...

O-7：ones heart in ones mouth 吓得要命 A:When she told me that she would marry no man but Dick, my heart was almost in my mouth. A:当她告诉我除了迪克她谁也不嫁时，我吓得要命。 B:You were scared, too? I dared not t...

O-6：once in a blue moon 极为罕见 A:The river is much higher than the ground. A:河比地高得多。 B:How dangerous! B:多危险呀！ A:Yes, it is. A:是呀。 B:What if the river overflowed its bank? B:河水要是涨过了岸，怎么...

O-5：on the whole 总的看来 A:Do naughty boys upset you? A:你讨厌调皮的孩子吗？ B:Oh, no. On the whole, I would rather see children active. B:不讨厌，总的来说，我喜欢活泼一点的孩子。 A:What about the troubl...

O-4：on the side 另外 A:What does your friend Jim do? A：你的朋友吉姆是干什么的？ B:He is a teacher, but he makes a little money on the side by repairing cars in his free time. B：他是个教师，但也在空闲时兼修汽...

O-3：on the heels of 接踵而来 A:The flood will come on the heels of the heavy rain. A:大雨后洪水会接踵而来的。 B:I wonder if the municipal government will take some preventive measures. B：不知道市政府会不会采取一...

O-2：on ones uppers 处于困境 A:Please lend me some money. A:借我点儿钱好吗？ B:OK. do you want it urgently? B:没问题，你有急用吗？ A:Yeah, I really want it. I am on my uppers. A:对，我真的非常急用它。 B:Rig...

O-1：on hand 手头 A:Youre starting to learn English? A:你开始学英语了？ B:Yeah. I like it, Dad. B:是的，爸爸，我喜欢英语。 A:Youre lucky you start to learn it so early. I learned English very late, and learned it all...

N-7：nurse a viper in ones bosom 姑息养奸 A:Hes so kind. I couldnt believe he murdered his wife. A:他人这么好，我无法相信他谋杀了他的妻子。 B:Of course not. I believe hes innocent. B：当然没有，我相信他是清...

N-6：not have the heart to do something 不忍心去做 A:What did you say when she told you the news? A:当她告诉你这个消息时你说什么？ B:I clammed up. And finally, I asked her to chew the cud for such an important decision,...