biographer
🇺🇸
/baɪˈɑːɡrəfər/
🇬🇧
/baɪˈɒɡrəfə(r)/
a person who writes about someone else's life
The biographer wrote a detailed book about the famous scientist's life.
傳記作者寫了一本關於這位著名科學家生平的詳細著作。