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高考 CET-4 CET-6 考研 IELTS BNC: 6096 COCA: 4473
textbook noun | adjective
 1 
text·book / 5tZkst7buk ; 5tekstbJk /noun C
1. a book that contains information about a subject that people study, especially at school or college教科书,教材,课本:
a biology textbook一本生物教科书
COURSEBOOK
 2 
textbookadjective only before noun
1. used to describe something that is done exactly as it should be done, or happens exactly as it should happen规范的; 标准的:
textbook case / example
The advertising campaign was a textbook example of how to sell a product.这个广告活动是如何销售产品的一个标准例子。

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