名词中文翻译
中文翻译：一本已封上的书
同义词：
['closed book', 'sealed volume', 'unopened book例句：1. She was so absorbed in her work that she forgot to close the book.（她全神贯注于工作，忘了合上书本。）']
例句：
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1. She was so absorbed in her work that she forgot to close the book.
她全神贯注于工作，忘了合上书本。
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2. The old library had a closed book on its shelves.
旧图书馆的书架上放着一本未开封的书。
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3. The story of his life is a closed book to him.
他的人生故事对他来说是一本未开封的书。