paperback
🇺🇸
/ˈpeɪpərbæk/
🇬🇧
/ˈpeɪpəbæk/
a book with a soft paper cover
I prefer buying paperback books because they are lighter and cheaper than hardcover ones.
我更喜欢购买平装书,因为它们比精装书更轻便、更便宜。