These are only 18 feet on a side and designed to increase atmospheric drag and thus help satellites out of orbit.
这是一个只有18英尺的小型太阳帆，旨在增加大气阻力以帮助卫星脱离轨道。
2
For those of you who never procrastinate, distract yourself or drag your feet when you should be doing something important, this article isn't for you.
如果你是属于在担任重要任务时从不拖拉、从不分散注意力或从不感到疲惫的那类人，那这篇文章并不针对你。
3
But compared to museums and libraries, universities will continue to drag their feet.