Fourey富雷
fournum.四
four thousand and three(=4003) 四千零三
four-stage compressor四级压缩机
four - year programme本科
four quarts to a gallon每加仑有四夸脱
Four Frees and One Care四免一关怀
Four Components of SARA四组分
four-wave interaction四波相互作用
four quadrants detector四象限探测器
Four-component system四构件系统
four-fold pollengrain四合花粉粒