takeoff accelerator

例句：

1. 1.The plane took off from the runway at 8:00 a.m.
   飞机在早上8点从跑道起飞。
2. 2.The space shuttle took off on its first test flight.
   航天飞机进行了它的第一次试飞。
3. 3.After taking off, the pilot flew over the city.
   起飞后，飞行员飞越了这座城市。