dust jacket
US /ˈdʌst ˌdʒæk.ɪt/
UK /ˈdʌst ˌdʒæk.ɪt/
1.
护封, 书套
a removable outer cover, usually of paper, for a book, serving to protect the binding and to display information about the book and its author
:
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The old book had a torn dust jacket.
那本旧书的护封破了。
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She carefully removed the dust jacket before reading the book.
她在读这本书之前小心地取下了护封。