名词
中文翻译：书脊
同义词：
['cover', 'spine', 'cover page例句：1. The book is on the table with its back to the wall.（这本书放在桌子上，封面朝墙。）']
例句：
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1. The book is on the table with its back to the wall.
这本书放在桌子上，封面朝墙。
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2. She carefully opened the book and read the first few pages.
她小心翼翼地翻开了书，读了几页。
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3. The book's cover is made of leather and has a beautiful design.
这本书的封面是用皮革做的，设计很漂亮。