Word: 燈 (dēng)

不要忘了關燈。

Búyào wàngle guān dēng.

Don't forget to turn the light off.

他忘了關燈。

Tā wàngle guān dēng.

He forgot to turn off the light.

你為什麼把燈打開了呀？

Nǐ wèishénme bǎ dēng dǎkāile ya?

Why did you turn on the light?

你可以關燈嗎？

Nǐ kěyǐ guān dēng ma?

Could you turn off the lights?

你在賣這些燈嗎？

Nǐ zài mài zhèxiē dēng ma?

Are you selling these lamps?

你忘了關燈。

Nǐ wàngle guān dēng.

You forgot to turn off the light.

你要我關燈嗎？

Nǐ yào wǒ guān dēng ma?

Do you want me to turn off the lights?

可以請你把燈打開嗎？

Kěyǐ qǐng nǐ bǎ dēng dǎkāi ma?

Could you please turn on the lights?

我想把閱讀燈關了，行嗎？

Wǒ xiǎng bǎ yuèdú dēng guānle, xíng ma?

I'd like to turn off the reading lamp, is that OK?

我把燈關了。

Wǒ bǎ dēng guānle.

I turned the lights out.

我沒有關燈。

Wǒ méi yǒuguān dēng.

I didn't turn off the light.

我沒有注意到燈變紅色了。

Wǒ méiyǒu zhùyì dào dēng biàn hóngsè le.

I didn't notice the light turn red.

燈沒有亮著。

Dēng méiyǒu liàngzhe.

The lights aren't on.

燈由紅變綠。

Dēng yóu hóng biàn lǜ.

The light changed from red to green.

燈突然滅了。

Dēng tūrán mièle.

Suddenly, the light went out.

燈自己滅了。

Dēng zìjǐ mièle.

The light went out by itself.

燈里的油用完了。

Dēng lǐ de yóu yòng wánle.

All the oil in the lamp has been used.

離開房間時，不要留燈。

Líkāi fángjiān shí, búyào liú dēng.

Do not leave the lights on when you leave the room.