tready条约treadn.步法；踏面；胎面花纹；鞋底v.踩；行走；践踏；(鸟类)交配tread on sb.'s cornstread bar contact area胎面花纹接地面积tread the path of life踏上人生的道路treadle operated valve踏板操作阀tread stripping machine胎面剥离机tread in sb's footstepstread upon the heels ofvt.紧随之后(接踵而至)tread patterns modeling花纹造型tread on someone's toes伤害某人的感情...tread-band vulcanizer轮胎翻新机