the part of a scene between the foreground and the background
例句
用作名词 (n.)
Usually there is a distinct contrast between the black primaries and brown coverts, still evident at middle distances. 长尾水剃通常在黑色的初级飞羽与棕色的覆羽之间有著明显的对比,在中距离的时候仍是可见的。
The Golden Ball winner beat Storari with a cold-blooded shot from a medium distance to give Milan the lead. 金球奖得主无情的中距离远射击败了斯托拉里。