dust jacket
noun [ C ] uk/ˈdʌst ˌdʒæk.ɪt/ us/ˈdʌst ˌdʒæk.ɪt/
（书籍的）护封，书套
a paper cover for a book, usually with the title of the book and the name of the author (= writer) printed on it
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。