That English exam was a real killer.

那英语考试真的难的不得了。

killer有杀手的意思，在俚语中可表示威力巨大或非常困难的事物;killer也可作形容词，表示棒极的，威力巨大的，极为困难的。

例：
He has killer muscles.他肌肉发达。

有时从某些商店或网站上可看到他们称自己出售的东西为killer chocolate cake` killer cookies...如果你也能够做killer cookies那你就是a killer cook,这里的killer指的是优秀的，棒极的。

1.An exam that was a real killer. 

真正是鬼门关的考试

2.That green dress is a real killer. 

那件绿衣服真好看。

3.  There is a company in Beijing producing the exam-cheating killer. 

北京有一家公司生产作弊克产品。

4.  A disease that was a killer of thousands; a killer of new ideas. 

杀死了千万人的疾病；杀死新思想的杀手

5.  I made a real muck of that exam. 

那次考试我可考糟了。

6.  She took an exam in English a week ago. It was said that she just squeezed in. 

一星期前她参加了英语考试，据说勉强通过。

7. There is no doubt that the job of being a governor is a killer-diller. 

毫无疑问，成为州长是一件了不起的事。

8. The police have evidence that the killer was a woman. 

警察有证据证明，杀人犯是个妇女。

9.   John failed the exam, it was cold comfort to him to be told that he could take a make-up exam next semester. 

约翰考试不及格，告诉他下学期可以补考只是徒增他的烦恼而已。

10.This disease is a killer. 

这种病是致命的。