flyleaf

名词 flyleaf:

1. a blank leaf in the front of back of a book

1. This volume is foxed on the flyleaf.
   这卷书的空白页发黄了。

fly.leaf

n.（名词）
A blank or specially printed leaf at the beginning or end of a book.
扉页：书的开头或末尾的空白处或特别印制的一页纸