“必修的”用英语怎么说？

俄语在学校课程设置中是一门必修的外语课。Russian is the one compulsory foreign language on the school curriculum.某些课程是必修的，其他是选修的。Certain courses are compulsory, others are optional.三个科目是必修的, 即英文, 数学和历史.Three subjects must be taken, viz., Eng...