feet。foot的基本意思是“腳，足”，引申可表示“足部”“底部，底座”“腳步，步伐”等。foot還可以用作長度單位，意思是“英尺”，表示“每英尺”時， foot前加a而不加one。

Your feet must be behind the line when you serve.

發(fā)球時你的腳必須站在底線的外面。

She shifted her weight from one foot to the other.

她把身體的分量從一只腳換到另一只腳上。

It was the first time I had set foot on American soil.

那是我第一次踏足美洲大地。

You can back up another two feet or so.

你可以再退兩英尺左右。

It was the first time I had set foot on African soil.

那是我第一次踏上非洲大地。

來源：高三網(wǎng)