Fourot富罗
fournum.四
four cutter bit四牙轮钻头
four-bed room四居室
fours on farmer农民本位
four fold table四重表
four fold block四饼滑车
four contactors四级接触器
four way wrench四用扳手
four-corneredadj.有四个角落的;四方的;方形的adj.有四人参加的
Four principles“四性”原则
four capaeities四种能力