fourth-class highway四级公路
fourth-class第四等的
Fourth grade class四年级一班
fourth-class stationary engineer第四类固定工程师
fourth-class power engineer第四类电源工程师
Fourth grade 1 class四年级1班
supernumerary fourth class tidewaiter额外四等稽查员
fourth class techniques第四类防伪技术
fourth class tidewaiters四等稽查员