她正在读一本关于那位著名科学家的传记。

She's reading a ___biography of the famous scientist.

我找到了奥威尔的传记，所以就买了下来。

I found Orwell's ___biography so I bought it.

这位作者花了数年时间为她的新传记做研究。

The author spent years researching for her new ___biography.