英语book封面

cover of the book

书封面 [名] book cover; [例句]我喜欢这本书封面上的图案。I like the design on this book jacket.

封面：Covertitle page,这是网页里面的“主页”的意思

封面 [词典] cover; the title page of a thread-bound book; the front and back cover of a book;[刷] front cover; [例句]她的小说刚进行了重印，新封面非常抢眼。Her novels have just been reissued with eye-catching new covers.