threedadj.三维的(立体的；体型的；有立体感的；真实的)threenum.三n.三；三个adj.三个的three channel三通道three pagodas三塔three-index三足标three-toned三音调的three-truss三主桁Three days.三天。three changes三变three factors三要素three-ridge三桥蛤three-fluten.三槽