threestepadj.三级的
threenum.三n.三;三个adj.三个的
threefold representation三重表达
three-speed phonograph三速唱机
three-point test cross三点测交
three hundred and thirty(=330) 三百三十
three-party conference三方会议电话
Three - plot selection三圃选择
three-point initiation3点起爆
three dimensional wiring三维布线
three-address computer三地址计算机
three hundred and eleven(=311) 三百一十一