例句：
She shifted her weight from one foot to the other.
她把身体的重量从一只脚换到另一只脚上。
He moved restlessly from one foot to another.
他的两只脚不停地倒替着。
It was the first time I had set foot on American soil.
那是我第一次踏足美洲大地。
It was the first time I had set foot on African soil.
那是我第一次踏上非洲大地。
I vowed never to set foot in the place again.
我发誓再不去那个地方了。
