As the pitch came in, Shay swung at the ball and hit a slow ground ball right back to the pitcher.
当这一球抛来时,夏恩挥棒击中了球,打出一记滚地球,球缓慢地滚向投手。
(Think of what would happen if you tried to slow down a skateboard with a tennis ball on it).
试想一下,你用网球使滑板减速是什么效果。
What this means for a football is that a slow-moving ball with a lot of spin will have a larger sideways force than a fast-moving ball with the same spin.
对足球来说,一个转速很高但球速慢的足球将比转速相同的快速球得到更大的侧向力。
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