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A book used as a standard work for the study of a particular subject, especially in schools.
学生们正在使用这本教科书学习化学。
The students are using this textbook to study chemistry.
教科书 typically refers to educational books used in formal education systems.
教科书 is a broader term that includes 课本 (textbook for a specific course) but may also refer to reference books or educational materials. 课本 specifically refers to the main textbook used for a course.
Use 教科书 in formal contexts such as education, academic discussions, or when referring to official educational materials. Avoid using it in casual conversations.
教科书 is composed of 教 (jiào, 'teach'), 科 (kē, 'subject' or 'branch of study'), and 书 (shū, 'book'). The term emerged in modern Chinese to describe standardized educational books.
教科书 is commonly used in educational contexts and is not typically used metaphorically. It is a formal term and is not slang or idiomatic.