three Ps三P
threenum.三n.三;三个adj.三个的
three-heat switch三热开关
three-way support三角架
three-stage jumbo三阶段隧道盾构
three - dimension三维
three-need theory三种需要理论
three significances三层内涵
three-step action三位作用
three-tank system三容系统
three electrod tube三极管
Three Gorge Project三峡