lift off

US /ˈlɪft ɔf/

UK /ˈlɪft ɔf/

起飞, 发射

the action of a spacecraft, rocket, or helicopter leaving the ground

•

The space shuttle's lift-off was delayed due to bad weather.

由于恶劣天气，航天飞机的发射被推迟了。

•

We watched the helicopter's smooth lift-off from the helipad.

我们看着直升机从停机坪平稳地起飞。

起飞, 升空

for a spacecraft, rocket, or helicopter to leave the ground

•

The rocket is scheduled to lift off at dawn.

火箭定于黎明时分升空。

•

The drone began to lift off slowly from the ground.

无人机开始缓慢地升空。