- a book used as a standard work for the study of a particular subject教科书, 课本。
attrib.
- conforming to or corresponding to a standard or type that is prescribed or widely held by theorists合乎规范的; 完全符合规定的; 教科书式的：
he had the presence of mind to carry out a textbook emergency descent.
他镇定自若地完成了合乎规范的紧急降落。
派生词