max level speed

例句：

1. 1. The car reachesits max level speed at the top ofthe hill.
   汽车在山顶达到其最大水平速度。
2. 2. The aircraft is designed to reach itsmax level speed in a short time.
   飞机设计成在短时间内达到其最大水平速度。
3. 3. Therace car needs to maintain its max levelspeed for the final lap.
   赛车需要在最后一圈保持其最大水平速度。