硬封面的书

例句：

1. 1. I bought a hardcover book for my friend as a gift.
   我给朋友买了一本硬封面的书作为礼物。
2. 2. The library has a large collection of hardcover books.
   图书馆收藏了大量的硬封面书籍。
3. 3. She loves reading hardcover books in the evenings.
   她喜欢在晚上阅读硬封面的书籍。