tread on

• The tread on the tyres has ( been ) worn down to a dangerous level
  轮胎胎面花纹已经磨损得到了能发生危险的地步了
• You ever could meet . i ll stick pins in your fingers and tread on your feet . .
  因为要对我表示你心内的sorry我嘛同
• You re not that now : a broken-backed snake that s been trodden on
  她说：“你再也不是一种被蹂躏的断了脊骨的蛇了。”
• We are treading on thin ice
  我们如履薄冰。
• You're treading on my feet
  你踩到我的脚了
• In the river there are these minnows and if you tread on them they tickle
  河里有很多小鱼，如果你踩到它们它们就会胳肢你
• He was calling for her that evening . all afternoon she trod on air
  他将在那天晚上去看她。为此,整个下午,她的内心都充满了喜悦。
• He trod on the head of the broom and the handles flew up and hit him in the face
  他一脚踩着扫帚头，扫帚柄飞快地翘了起来，打在他的脸上。
• If i see you ride a donkey over my grass again, i'll knock your bonnet off and tread on it
  如果我再看见你在我的草地上骑驴的话，我要打下你的帽子，用脚来踩。
• Ah ! my child, i know they have both suffered grief . they have has the black ox tread on their feet
  啊！我的孩子，我知道他俩都遭不幸。他们尝到了人世的悲痛。