因为sign本身可以作名词和动词，我估计你说的应该是它的句子举例。

All programmes will be either "signed" or subtitled.所有的节目都配有手势语或者字幕。World leaders are expected to sign a treaty pledging to increase environmental protection.人们期望世界领导人们能签署一份承诺加强环境保护的条约。The Minnesota Vikings signed Herschel Walker from the Dallas Cowboys.明尼苏达维京人队签约雇用了达拉斯牛仔队的赫舍尔·沃克。