extra space

• 额外空间

extra space的用法和样例：

例句

1. Supinators also tend to have wide feet and need to look for a shoe that provides extra room in the forefoot and toe box.
   高足弓脚倾向于拥有宽的脚面，需要在前脚和脚趾部分能提供额外空间的鞋。
2. It recasts particles as one-dimensional strings, or filaments of energy, which play around in tiny tangles of extra spatial dimensions.
   弦论将粒子视为一维的弦或是细丝状的能量，并只活动在额外空间维度的微小缠结之中。