n.脚( foot的名词复数 );底部;英尺(=12 英寸或 30.48 厘米);脚步;
例句:
The ground suddenly sank under his feet.
他脚下的土地突然陷下去了.
Wipe your feet on the mat before you come in, please.
请在垫子上擦擦脚再进来。
The ground quaked [ trembled ] under his feet.
大地在他脚下 颤动.