dropping of shank

例句：

1. 1.The patient's leg was dropping off the bed.
   病人的腿从床上垂了下来。
2. 2. She noticed her legs were sagging after a long day at work.
   她注意到自己在工作了一整天后，双腿开始下垂。
3. 3. The old man's limp had become more pronounced over the years.
   这位老人的跛行随着岁月的增长而变得更加明显。