You describe something as being underfoot when you are standing or walking on it.
例句
...a room, high and square with carpet underfoot and tapestries on the walls...一个高高的四方房间，地上铺有地毯，墙上挂着挂毯It was still wet underfoot.地上仍是湿的。
ADV
踩在脚下；践踏
If you trample or crush something underfoot, you spoil or destroy it by stepping on it.
例句
Morgan dropped his cigarette and crushed it underfoot.摩根把香烟丢到地上，用脚踩灭。...half-ripe apples that were being trampled underfoot.被踩踏的半熟的苹果
英汉词典释义
adv.
在脚下；在地上
insects that had been crushed underfoot被踩扁的昆虫He trod the golden beetle underfoot.他把一只金色的甲虫踩在脚下。He saved a little girl from being trampled underfoot in the rush for the fire exit.他从冲向安全出口的人群脚下救出了一个小女孩。
英英词典释义
Adverb
1. under the feet;
"trampled the beans underfoot""green grass growing underfoot"
2. in the way and hindering progress;
"a house with children and pets and toys always underfoot"