必修課

Simplified: 必修课

bìxiūkè ㄅㄧˋ ㄒㄧㄡ ㄎㄜˋ

    • required course compulsory course

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
compulsory course
Meaning
Something one must do or learn. Often used figuratively for an unavoidable task.

Sources