我是高中八班班长李华，担任英文翻译

I am 18 high class monitor Li Hua 班长[bān zhǎng].

词典监视器; 班级监视器（学生班级的班级）。

I'm Li Hua, the monitor of Class 8, senior one.

I am the monitor of class eight, grade one in senior high school, Li Hua.

I am 18 high class monitor Li Hua