单词详解

n.

教科书，课本 (a book that teaches a particular subject and this is used especially in schools and colleges)

Miss Li, I am sorry that I have left my textbook at home.

对不起李老师，我把我的课本丢在家里了。

The monitor is helping the teacher handing out the textbooks.

班长正在帮助老师分发教科书。

相关单词

复数：textbooks