他们是谁用英语怎么说短语

他们是谁用英语短语：Who are they？Who are they的例句：Who are they and what do they represent？（他们是谁？又代表了什么重要性？）。Who are they，Stanley？（他们是谁，斯坦利？）。

Who are they的例句：Who are they talking to？They're talking to a policewoman（他们在和谁谈话？他们正和一位女警察交谈）；Who are they？I don't recall seeing them（他们是谁？我不记得是否见过他们）。