必修 bìxiū HSK6 compulsory Origin Definitions Defs Strokes Stroke Words Sentences Sents 必修课 bìxiūkè required course a course or subject that a student must complete according to regulations; compulsory course必修科 bìxiūkē required course A course or subject mandated by an educational institution or administrative body that students must complete; the opposite of an elective course.