“干事”的英语？

“干事”的拼音为：gàn shì...

我的祖父是苏格兰矿工工会干事。My grandfather was secretary of the Scottish Miners' Union.数学最差的学生竟被选为班级财务干事,这真是具有讽刺意味.It's ironical that the weakest student in mathematics was elected class treasurer.他干事有他的一套.He has his own se...