who

1. 谁,什么人what or which person(s)
2. (限制性关系代词)…人(the person or persons) that
3. (非限制性关系代词)他,她,他们(used especially in written language, after a comma, to add more information about a person or people)

as who[古语]像是…的人

who's who名人（总称）；名人录

who is who谁是谁；名人录

1. People who cannot speak can talk by using signs.
   不会说话的人可以用手势沟通。
2. Who do you think you are?
   你以为你是谁？
3. She looked wretched and forlorn, despairing of the arrival of a friend who had promised to meet her.
   她看上去又可怜又孤独，对于答应来看她的朋友的到来已不抱希望。
4. He is a leader who is magnanimous in victory.
   他是个在胜利时宽宏大度的领袖。
5. Do you know who broke the window?
   你知道谁打破了窗户？
6. This is the man who wanted to see you.
   这就是要见你的那个人。