frap

例句：

1. 1.The old book has a frappe, which makes it easy to turn the pages.
   这本旧书有一个翻页器，使得翻页变得容易。
2. 2.The frappe is a simple design that makes it easy to use.
   翻页器的设计简单，使用起来很容易。
3. 3. The frappe is an essential tool for anyone who needs to read large books quickly.
   翻页器是任何需要快速阅读大本书的人的必备工具。