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。

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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》

May: Fortunately her class is just an elective course, not as important as compulsory courses.

阿美：幸亏她的课只是门选修课，不像必修课那么重要。

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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.

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