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 missions三个使命three-source三点源Three students高三学生three terminaladj.三端的three-vector三维向量three way core三股心线Three Surnames三姓three-setter三局两胜的一场比赛three part box三开箱three-valuedadj.三价的