O-11：an the side of the angels在道义的一方 A:Do you know his opinions of this matter A:你知道他对此事的看法吗? B:In regard to this problem，he is on the side of the angels. B:关于这个问题，他坚持传统观点。...

O-10：on speaking terms关系好 A:Whats wrong? You look upset. A:你怎么了?你看上去好像心事重重。 B:I had a quarrel with my girlfriend a few days ago. Since our quarrel we havent been on speaking terms. To tell the truth，I...

O-9：on ones toes 准备行动 A:Hell only be here for a few minutes. A:他就在这儿待一会儿。 B:So I11 be on my toes. B:所以我得随时准备着。 A:Yeah，if you want to speak to him. A:对，如果你想和他说话的话。...

O-8：on ones behalf 代表某人 A:Good morning，Miss. Id like to see Mr. Johnson. A:早上好，小姐，我想见约翰逊先生。 B:May I have your name，please B:您叫什么名字? A:My name is Jones. A:我叫琼斯。 B:Im sorry，...

O-7：on good terms with 与关系好 A:Hes on good terms with everyone here. A:他与这儿的任何人关系都很好。 B:Yes. I know. But does he agree with others all the time? B：是的，我知道。但他总是和别人意见一致吗...

O-6：on and on 不停地 A:She talked on and on about her sons success. I was tired of it. A:她不停地谈着她的儿子的成功，我都烦透了。 B:She was so excited. B:她太激动了。 A:But I couldnt stand it anymore. A:我再也...

O-5：off ones chest 倾诉心中的隐秘 A:Hello, I heard you were looking for me? A:我听说你在找我？ B:Yes. B：是的。 A:You look off color. A:你的气色不好。 B:Really? Henry, are you free now? B：是吗？亨利，你现...

O-4：off base 多余的 A:How can you be so sure of that? Besides, you paid no beeds to him when he was poor. A:你怎么能确定呢？再说，他穷的时候你根本就没注意过他。 B:Hes not that narrow-minded. Besides, I havent...

O-3：off adain, on again 断断续续 A:That woman is difficult to please. A:那个女人真难取悦。 B:Dont speak of her, Mary! B：另说她的坏话，玛丽！ A:No, I just call a spade a spade. She never follows the rules. She does...

O-2：of ones own accord 自愿的 A:Its said that you have helped a guy like Peter. Is there anyone who asked you to do so? A:听说你帮了彼得那小子，有人让你这么做吗？ B:No. I did it of my own accord. B：没有，我是出...