hardback

例句：

1. 1. He bought a hardback edition of the book for his grandmother's birthday.
   他为祖母的生日买了一本精装版的书。
2. 2.The hardback edition of the classic novel is now available in many bookstores.
   经典小说的精装版现在在许多书店都有售。
3. 3. I prefer reading books on paperback, as they are more portable and convenient.
   我更喜欢读平装书，因为它们更便携、方便。