The other set of footsteps was sharp and crisp. They clattered as if steel soles had been affixed to the bottom of the boots, click-clack, in time with the clockwork.

• 另一个脚步声尖利而有节奏.；它们的声音听上去就想鞋底贴了钢片一样；噼--啪--噼--啪；就想时钟一样