compulsory

• Schools should not make classroom attendance compulsory
  学校不应该使出勤成为必修。
• Comparative study on china - germany compulsory measures
  中德强制措施比较研究
• Higher education is not compulsory education any more
  高等教育已不再是义务教育了。
• China implementes nine - year compulsory education
  中国实行九年制义务教育。
• China performs on nine - year compulsory education
  中国实行九年制义务教育。
• Is military service compulsory in your country
  你们国家实行义务兵役制吗？
• China implements nine - year compulsory education
  中国实行九年制义务教育。
• Micro - economic analysis of compulsory requisition of land
  我国农地征用制度的博弈分析
• Schools should not make classroom attendance compulsory
  学校不应强迫学生到教室上课。
• Four compulsory courses history of christianity church history
  教会史必修以下四科：