and walking shoes should be flat, with little difference in height between the heel and the ball of the foot. 4565 什么意思?

问题描述:

and walking shoes should be flat, with little difference in height between the heel and the ball of the foot. 4565 什么意思?

并且步行鞋应该是平底的,在脚后跟和脚掌之间高度有略微的起伏.