Definition (领导者)
In the UK, a student, either male or female, who often represents their school at formal events.
学生代表（常在正式场合代表学校）
This year, the head boy will be Li Ming.
今年的男生代表将是李明。
As head girl, she needs to help organize major school events.
作为女生代表，她需要协助组织重大的学校活动。
The head boy delivered an inspiring speech at the graduation ceremony.
男生代表在毕业典礼上发表了鼓舞人心的演讲。