必课英语

elective/optional courserequired course

专业必修课：Professional compulsory course 公共选修课：public Selective course专业基础课：Professional Basic Course、Major Basic Course公共基础课Public Basic Course专业选修课Professional Selective Course任意选修课Optional Elective Course专业主干课Major Principal Course、实践环节Practical Stage供参考

选修课：an elective course; a selective course; a selected course必修课：a required course; an obligatory course

compulsory courses, elective courses, professional courses, public courses 必修课，选修课，专业课，公共课

compulsory study

compulsory course required course, obligatory class

compulsory course必修课elective course 选修课国外大学都这么说的，信我的没错如果要简写的话，就采用楼下的说法吧