you put your foot on the thing.what do we call this action?

问题描述:

you put your foot on the thing.what do we call this action?
答一单词

tread [tred]
n.踏;胎面;步态;鞋底;踏板;梯级
vt.踏;踩;践踏;跳;踩出
vi.踏;踩;行走;交尾
[ 过去式 trod 过去分词 trodden 或 trod 现在分词 treading ]