Gravel crackled beneath their feet as Snape and Yaxley sped toward the front door, which swung inward at their approach, though nobody had visibly opened it.

• 斯内普和亚克斯利快速走向前门，碎石在他们脚下噼啪作响。门打开了，尽管他们没看到任何人来开门。