limit speed的用法和样例：
例句
- The space agency's dogged pursuit of extreme speed, officials hope, will ultimately make space flight easier to accomplish.
太空署一直以来都在追求官方希望的极限速度，这将使太空飞行变得极其容易。 - Though no statistician we spoke with had recalculated their numbers, the new world record is likely to rejigger the equations they use to calculate the maximum human speed.
虽然上述提到的几个统计学家并没有说重新计算了他们的数据，但是博尔特的世界纪录很有可能让他们重新计算出新的人类极限速度。
