汤包sama
e-books 英['i:b'ʊks] 美['i:b'ʊks] n. 电子书( e-book的名词复数 ) [网络] 电子图书; [例句]Buyers of e-books get a good deal.: Traditional hard cover hardcover books often cost around$ 25.电子书的买主获得了实惠，因为传统的精装书一般售价25美元左右。电子书 [名] electronic book; E-book;[网络] ebook; eBook; e-book;[例句]如此一来，用电子书签保存所找到的网页内容就变得非常简单，日后也可以再次访问。This makes it extremely simple to save what you find with an electronic bookmark so you can return to it later.是可数的望采纳，谢谢！
