subject knowledge短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 学科知识 Teachers should hold the proportion appropriately: examples in the textbook and examples not in the textbook, examples of subject/span> knowledge and examples of not subject knowledge. 教师要适度地把握所举的例子中，教材内的例子和教材外的例子、学科知识的例子和非学科知识的例子的比例。 fabiao