博学家

例句：

1. 1. He is a renowned scholar in the field of physics.
   他是物理学领域的著名学者。
2. 2. The book is written by a famous scholar.
   这本书是由一位著名学者写的。
3. 3. Many young people aspire to become scholars in their fields.
   许多年轻人渴望成为他们领域的学者。