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猫小帅科普：为什么鞋底有花纹？它们不仅好看而且用处还很多哦！
为什么鞋底要有花纹呢？通常人在走路的时候，脚都会往后蹬，如果穿鞋底平滑的鞋子，鞋底与地面的摩擦很小，人就很容易会滑倒哦！如果是有花纹的鞋底，就会增大鞋子与地面的摩擦，让我们走路安全多啦！
猫小帅十万个为什么26/100
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