●it takes ˈtwo (to do sth) ( it takes two to ˈtango) (saying) used to say that sth cannot be the fault or responsibility of one person alone一个巴掌拍不响；双方都有责任◆You’ve only heard his side of the story. It takes two to have an argument, you know.你只听了他的一面之词。要知道，一个人是吵不起架的。◆The company is ready to sign the agreement now, but it takes two to tango and the negotiations may continue for several days yet.现在公司已经准备签署协议，但是单凭一方还不行，所以谈判可能还要持续几天。