当飞行员将飞机垂直俯冲下去时，我们都给吓坏了。

We were all terrified when the pilot took the plane into a nosedive .

当飞行员将飞机垂直俯冲下去时，我们都给吓坏了。

We were all terrified when the pilot took the plane into a nosedive.

待直升机垂直俯冲的距离与垂直爬升的距离相同时，拉起机头恢复成水平直线飞行。

The helicopter is allowed to fall the same distance that it climbed at the beginning of the maneuver before pulling the helicopter back to straight and level flight.