underfoot

underfoot
/ˌʌndəˈfut; ˌʌndɚ`fʊt/ adv
under one's feet; on the ground 在脚下; 在地上
    The snow underfoot wassoft and deep. 脚下的雪又软又厚.
    It's muddy underfoot.地上很泥泞.
    Fallen riders were trampled underfoot by the charging horses. 摔下来的骑手遭飞奔马群践踏.

牛津英汉双解词典