textbook
noun [ C ] uk/ˈtekst.bʊk/ us/ˈtekst.bʊk/
A2 教科书，教材，课本
a book that contains detailed information about a subject for people who are studying that subject
a science textbook 自然科学教科书
textbook
adjective [ before noun ] uk/ˈtekst.bʊk/ us/ˈtekst.bʊk/
典范的；合乎规范的；典型的
(of an example of something) extremely good, or thought to be usual or typical
That was a textbook goal from Taylor. 泰勒那个进球堪称典范。
It was a textbook example of how to deal with the problem. 这是如何处理此问题的一个范例。