minor

It is illegal for a liquor store to sell alcohol to a minor.

(Chinese) 商店向未成年人出售酒精饮料是违法的。

As a minor, she needed her parents' signature to go on the school field trip.

(Chinese) 作为未成年人，她需要父母签字才能参加学校的郊游。

His major is Computer Science, but he decided to take a minor in Japanese.

(Chinese) 他的专业是计算机科学，但他决定辅修日语。

Completing a minor in Economics requires taking four specific advanced courses.

(Chinese) 完成经济学辅修需要修读四门特定的高级课程。