his real name
他的真名叫什么？
What is his real name?
— 怒火青春 (1995)
他的真名是海森史坦
His real name is Heisenstein.
— 窃听风暴 (2006)
那是他的真名吗?
Is that his real name?
— 再见，孩子们 (1987)
可我们不知道他的真名
But we don't know his real name.