book是什么意思
更新时间：
book：作名词指书, 书籍, 卷, 篇, 帐簿, 名册, 工作簿；作动词指登记, 预订, 控告。
例句：
1、This is my book.
2、The book is so difficult that I can not understand.
3、Could you tell me what is the middle idea of the book?