| 例句 |
English is a required course. 英语是必修课。The college authorities have now made these classes obligatory.学院管理部门现已将这些课程列为必修课。English is compulsory for all students, but art and music are optional.英语是所有学生的必修课，而艺术和音乐则是选修的。Swimming was compulsory at my school.在我们学校，游泳是必修课。 |