选修课（optionalcourse的复数）

选修课（optional course的复数）

vocational course───职业科，职业课程

national codes───国家标准

optical mouse───光电鼠标

plinth courses───墙基层

proportional counters───[自][核]正比计数器

proportional counter───[自][核]正比计数器

national costumes───民族服装

Do you have optional courses this semester?───这学期你们有选修课 吗 ?

you have optional courses for the first term?───第一学期你们有选修课吗？

English optional courses are important part of school curriculum , showing differentia, diversity and flexibility of curriculum.───它体现了课程的差异性 、 多样性和灵活性,是学校课程中的重要组成部分.

Students take great interest in the optional courses.───学生对选修课非常感兴趣。

Those optional courses are also very interesting, but many people choose not to take the classes.───选修课也很有意思的, 但是很多人都不去上.

Since 1991, the University opens optional courses of science fiction for students of other majors.───从1991年起, 学校就在本科生中开设了科幻文学的跨系选修课.

you have optional courses this semester?───这学期你们有选修课吗？

English optional courses are important part of school curriculum , showing differentia, diversity and flexibility of curriculum.