He gave the ball a boot by the other foot.

他用另一只脚重重地踢了一下这球。

youdao

She hit the ball hard with her foot.

她用脚使劲踢球。

youdao

This study showed that an increase in the coefficient of friction between the ball and the foot caused the ball to acquire more spin.

这项研究表明，脚和球之间的摩擦系数的增加导致了球获得更多的角动能。

youdao

Then he would fall down on the floor again like a ball of dirt and start rubbing the side of his head with his back foot as if he had no idea he had been doing any more than any frog might do.

VOA: special.2009.08.29

It's a little easier to hit the ball hard to the opposite side from the side which is your foot and that's the same principle in baseball.

从另一侧击球更容易发力,在棒球中这个道理也是适用的

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