step speed change

例句：

1. 1. The car's engine is designed to change its speed in response to the road conditions.
   汽车的发动机设计成根据道路条件改变速度。
2. 2. The team decided to make a step speed change during the game.
   团队决定在比赛中做出步速调整。
3. 3. The new software allows for a smoother step speed change between different operating systems.
   新软件允许在不同操作系统之间更平滑地进行步速切换。