treading/tred/名词（车胎的防滑）胎面花纹The tread on your tyres is very worn.你车胎上的花纹都磨损得很厉害了。脚步声Then I heard someone's tread on the stairs.接着我听到楼梯上有脚步声。/tred/动词踩；踏Yuck! Look what I've just trodden in!可恶！看我刚才踩到什么了！想跟读，去练习
