three I三I算法threenum.三n.三；三个adj.三个的threeday fever三日热, 白蛉热three-limbed三肢体three cultures三元文化three impulses三冲量three-mastern.三桅的船three gun tube三枪管three nitrogen三氮three channels多导联three function三次函数three way tube三通管, 三路管