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 a middle course取中庸之道,避免极端
TREAD WEAR INDICATORS轮胎磨耗指示器
tread patterns' noise
treadle-type plough键(簧)式犁
tread on sb.'s toes
treadle sewing machine脚踏缝纫机
tread cushioning layer底胎面
tread the right course在正确道路上前进
tread a dangerous path踏上危险的道路
tread reclaimed rubber胎面再生胶