•Extraterritorial (adj.) -

　　Existing or taking place outside the territorial limits of a jurisdiction. （治外法权的）

　　Examples:　　

　　1.The laws of a nation may have extraterritorial impact extending the jurisdiction beyond the sovereign and territorial limits of that nation.　　

　　2.Under extraterritorial laws, the suspect was arrested in Canada and returned to the U.S.

　　•Sword of Damocles -

　　达摩克利斯之剑或悬顶之剑，隐喻随时降临的危险。传说中的达摩克利斯是古意大利的朝臣，他与国王交换一天的身份并非常享受。但当他抬头发现王位上方仅用一根马鬃悬挂着的利剑时，兴趣顿失，不想再拥有如此高的权位了。

　　•Beyond doubt (idiom) -

　　Without question; definitely.（不容置疑，毫无疑问）

　　Examples:　　

　　1.The DNA test results proved beyond any doubt that he was not the child's father.　　

　　2.If she is to be found guilty, the charges against her must be proved beyond a reasonable doubt.

　　•Drive a wedge between sb/sth (idiom) -

　　To cause discord between two people or things.

　　（挑拨……之间的关系）

　　Examples:　　

　　1.It doesn't make sense to let things that happened in the past drive a wedge between us now.　　

　　2.The argument drove a wedge between Mike and his father.

　　•All walks of life (idiom) -

　　Used to refer to people who have different jobs or positions in society.（各行各业，社会各阶层）

　　Examples:　　

　　1.People from all walks of life came to the carnival.　　

　　2.Members of the gym include lawyers, teachers, plumbers, - people from all walks of life.