language didactics的用法和样例：
例句
- What he has used is a up-to-date method of language teaching.
他使用的是一种最新的语言教学法。 - The teaching approaches of "teacher-centeredness" and "student-centeredness" have their rationalities in foreign language teaching, but both of them have their obvious limitations.
摘要以教师为中心和以学生为中心的教学法在外语教学中既具有合理性，也有着明显的局限性。
