評論
打印
Why horses have skinny legs?
馬的腿為什么這么細？
What's the use of a skinny leg?
這么細的腿有何作用？
The answer is Running.
答案是用于奔跑。
The skinniest lower legs belong to the fastest runners.
最細長的小腿能夠賦予奔跑者最快的速度。
Think of how a deer can move, as opposed to a tortoise.
相比一只烏龜，想想一只鹿如何運動。
Why is that?
那是為什么?
It's because when you run, or indeed walk, you are constantly swinging the bottom halves of your legs.
這是因為當你在奔跑,甚至走路時,你的小腿部分要不斷進行擺動。
For humans, one foot is stopped and essentially resting on the ground while the other is moving twice as fast as your overall speed.
對于人類來說,一只腳停止步伐時本質上是在地上,另一只腳則按照你整體速度的2倍進行運動。
