飞行员打开了安全带指示灯。
fēi háng yuán dǎ kāi le ān quán dài zhǐ shì dēng
The pilot has turned on the fasten seat-belt sign.
把灯打开。
bǎ dēng dǎkāi
Turn on the light.
把灯关了。
bǎ dēng guānle
Turn off the light.
你装上新灯泡了吗?
nǐ zhuāng shàng xīn dēng pào le ma
Did you put a new light bulb in?
你把灯打开了吗?
nǐ bǎ dēng dǎ kāi le ma
Did you turn the light on?
你换灯泡了吗?
nǐ huàn dēng pào le ma
Did you change the light bulb?