词典释义：
walk in a specified way
走，行走
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he trod lightly, trying to make as little contact with the mud as possible 他轻快地向前走，尽可能避免踩到泥浆
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figurative 〈喻〉the government had to tread carefully so as not to offend the judiciary .政府不得不谨慎行事，以免得罪司法部门。
(
（脚）踩，踏。
[with obj.]walk on or along
沿着… 走
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shoppers will soon be treading the floors of the new shopping mall .顾客马上就要走进新商场了。
[with obj. and adverbial]press down into the ground or another surface with the feet
踏进（地面等）
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food and cigarette butts had been trodden into the carpet .食物和烟头已被踏进地毯里去了。
[with obj.]crush or flatten something with the feet
用脚踩碎，踏平
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the snow had been trodden down by the horses 雪已被马给踏平了
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[as adj.
trodden ]figurative 〈喻〉the conscientious are trodden down into conformity .勤恳的人被压制得服服帖帖。
[in sing.]a manner or the sound of someone walking
步法，步态；脚步声
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I heard the heavy tread of Dad's boots .我听到父亲靴子的沉重踩踏声。
(亦作
（楼梯、台阶的）踏步板，梯面。
the thick moulded part of a vehicle tyre that grips the road
车胎胎面，踏面。
the part of a wheel that touches the ground or rail
（与地面、钢轨接触的）车轮踏面。
the upper surface of a railway track, in contact with the wheels
（钢轨与车轮接触的）钢轨踏面。
the part of the sole of a shoe that rests on the ground
鞋底。
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tread the boards （或stage ） 见BOARD .tread on air 见AIR .tread （或step） on someone's toes offend someone by encroaching on their area of responsibility （因侵犯某人权责范围而）冒犯某人 -
tread water maintain an upright position in deep water by moving the feet with a walking movement and the hands with a downward circular motion 踩水 -
figurative fail to advance or make progress 〈喻〉 原地踏步；无进展men who are treading water in their careers . 事业停滞的人
"Old English
