pa·per·board
noun/ˈpeɪpəbɔːd/
/ˈpeɪpərbɔːrd/
[uncountable] (North American English)- a type of thick stiff paper or thin board made of many layers of paper stuck together
纸板：一种厚硬纸或薄纸板，由多层纸粘在一起制成 - The cover of the book was made of paperboard.
这本书的封面是纸板做的。
- The cover of the book was made of paperboard.