This is a prescribed course which spreads over two semesters.

这是门两个学期学完的。

Is English a compulsory subject?

英语是吗?

Ophthalmology is a compulsory course of clinical medicine for medical college students.The undiversified traditional teaching method results in unsatisfactory teaching effects.

眼科学是高等医学院校学生的一门临,统教学手段单一,教学效果不尽人意。