compulsory subject
短语词组
- administrative compulsory enforcement subject 行政强制执行主体
- professional compulsory subject 专业必修课
- required subject compulsory subject 必修科
- a compulsory subject 必修科目
- obligatory subject compulsory required 必修课
- be subject to compulsory certification 必须经过认证 返回 compulsory subject