11 sentences

1. 离开房间时请随手关门。

   lí​kāi fáng​jiān shí qǐng suí​shǒu guān​mén.

   Please close the door behind you when leaving the room.

   Source: Dong Chinese Dictionary

2. 你为什么离开房间？

   nǐ wèi​shén​me lí​kāi fáng​jiān?

   Why did you leave the room?

   Source: OpenSubtitles

3. 离开房间前请记得熄灯。

   lí​kāi fáng​jiān qián qǐng jì​de xī​dēng.

   Please remember to turn off the lights before leaving the room.

   Source: Dong Chinese Dictionary

4. 离开房间时请随手关灯。

   lí​kāi fáng​jiān shí qǐng suí​shǒu guān​dēng.

   Please turn off the lights as you leave the room.

   Source: Dong Chinese Dictionary

5. 离开房间前，请把电闸关掉。

   lí​kāi fáng​jiān qián, qǐng bǎ diàn zhá guān​diào.

   Please turn off the main switch before leaving the room.

   Source: Dong Chinese Dictionary

6. 我们回来之前别离开房间！

   wǒ​men huí​lai zhī​qián bié lí​kāi fáng​jiān!

   Don't leave the room until we get back!

   Source: OpenSubtitles

7. 马上离开房间。

   mǎ​shàng lí​kāi fáng​jiān.

   Leave the room immediately.

   Source: Tatoeba

8. 我刚才发现他已经离开房间了。

   wǒ gāng​cái fā​xiàn tā yǐ​jīng lí​kāi fáng​jiān le.

   I just noticed that he had already left the room.

   Source: Dong Chinese Dictionary

9. 别离开房间。

   bié lí​kāi fáng​jiān.

   Don't leave the room.

   Source: Tatoeba

10. 离开房间时请关好门窗，注意防盗。

    lí​kāi fáng​jiān shí qǐng guān​hǎo mén​chuāng, zhù​yì fáng​dào.

    Please close the windows and doors when leaving the room and watch out for theft.

    Source: Dong Chinese Dictionary

11. 离开房间前，请检查一下灯是否关了。

    lí​kāi fáng​jiān qián, qǐng jiǎn​chá yī​xià dēng shì​fǒu guān le.

    Please check if the lights are off before leaving the room.

    Source: Dong Chinese Dictionary