电子书的英文：
electronic book
e-book
e-reader

参考例句：

Convenience, though, is still the main attraction—and that means more than simple portability.
不过便捷仍是该书的主要魅力—这就是说电子书不只是携带方便。

The original provider undownloaded one ebook from my device.
原始提供商从我的设备里撤销下载了一本电子书。

electronic是什么意思：
adj. 电子的；电子操纵的

electronic mailbox device for receiving and storing electronic mai
接受、储存电子邮递的装置.

Electronic mailbox device for receiving and storing electronic mail
接受、储存电子邮递的装置.

Do you have a marine electronic diploma?
你有航海电器执照吗？

book是什么意思：
n. 书籍；著作；圣经；有内涵的事物；知识；剧本；账簿；卷，篇
adj. 从书本上学来的；账簿记载的
v. 预订；将…的姓名记在本子上；【英】预订房间 c

subsidiary book
辅助帐簿; 明细帐簿

It was a stupid book.
那是一本无聊的书。

This is the sum of this book.
这就是这本书的要点。

reader是什么意思：
n. 读者；读物；讲师；阅读器；审稿人

a reader; a publisher's reader
审稿人

A selection of the readers' suggestions have been accepted.
部分读者的建议被采纳了。

They are of the opinion that incomprehensibility is the reader's fault.