“干事”造句

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 set way of doing things.