To learn more about Chinese culture, Jack has decided to take Chinese folk music as an elective course.

为了更多地了解中国文化，杰克决定选修中国民间音乐。

youdao

Most of the students of our class take Japanese as an elective course.

我们班大部分同学选修日语。

《新英汉大辞典》

It is an elective course created by Jay Grymes, an assistant professor.

这是一位叫做吉•格林姆斯的助教发明的选修课程。

youdao

She took my personal finance course as an elective, and the smart, hard-working student followed all her assignments, including the one that called for her to obtain a free copy of her credit report.

FORBES: How Credit Reports Can Protect You From Identity Theft