a leather-bound book的用法和样例：
- The book had a leather binding.
- He carried a leather briefcase embossed with his initials.
- He strapped the driver with a leather belt.
- The silver was rubbed up with a leather till it shone.
- Each copy of the book is handwritten and illustrated by Rowling on translucent vellum paper as well as being leather bound and covered with silver and jewels.