通常学生必须参加

normally aspirated───自然吸气

Normally a student must attend a certain number of courses in order to graduate, and each course which he attends gives him a credit which he may count towards a degree.───通常来讲，一名学生必须参加一定数量的课程学习才可以毕业，他上的每一门课都会得到学分，这些学分累 加起来，才能拿到学位。

Reading Comprehension Normally a student must attend a certain number of courses in order to graduate, and each course which he attends gives him a credit which he may count towards a degree.───给我追加！！通常一个学生都必须参加一定数量的课程，以便毕业后，和每门课程，他出席使他的信用，他可以指望实现的程度。