飞机在早上八点起飞。
fēijī zài zǎoshàng bā diǎn qǐfēi 。
The plane takes off at eight in the morning.
我们要赶快去机场，飞机快要起飞了。
wǒmen yào gǎnkuàiqù jīchǎng ， fēijī kuàiyào qǐfēi le 。
We need to hurry to the airport; the plane is about to take off.
他在飞机起飞前检查了一下他的行李。
tāzài fēijī qǐfēi qián jiǎnchá le yīxià tāde xínglǐ 。
He checked his luggage before the plane took off.