xuǎn​xiū​kè

elective course

Senses

选修课/ 選修課 xuǎn​xiū​kè elective course

A course or class that a student can choose to take from a list of options; an optional course as opposed to a required one.

References

classifier 选修课/選修課 门/門
antonym 选修课/選修課 必修课/必修課
antonym 必修课/必修課 选修课/選修課