Rather, it was stopped. Abruptly the near side of it flattened as though it had run up against an invisible wall. It bounced, actually bounced back.

• 它的确是停了下来，表面一侧突然变得扁平，很显然，它像是撞上了一堵看不见的墙，它被反弹了回去，但又立刻卷土重来。