7 sentences

1. 他被关在一间阴暗的囚室里。

   tā bèi guān zài yī jiān yīn'àn de qiú​shì lǐ.

   He was locked in a dark prison cell.

   Source: Dong Chinese Dictionary

2. 由于没有窗户，这个房间显得非常阴暗。

   yóu​yú méi​yǒu chuāng​hu, zhè​ge fáng​jiān xiǎn​de fēi​cháng yīn'àn.

   Because there are no windows, the room is very dark and gloomy.

   Source: Dong Chinese Dictionary

3. 阴暗潮湿的墙角生出了厚厚的一层苔。

   yīn'àn cháo​shī de qiáng​jiǎo shēng​chū le hòu​hòu de yī céng tái.

   A thick layer of moss grew in the dark, damp corner of the wall.

   Source: Dong Chinese Dictionary

4. 这种毒蛤通常生活在阴暗潮湿的林子里。

   zhè zhǒng dú há tōng​cháng shēng​huó zài yīn'àn cháo​shī de lín​zi lǐ.

   This kind of poisonous toad usually lives in dark, damp forests.

   Source: Dong Chinese Dictionary

5. 窗外天空阴暗，天气沉闷得让人感到有些喘不过气。

   chuāng wài tiān​kōng yīn'àn, tiān​qì chén​mèn de ràng rén gǎn​dào yǒu​xiē chuǎn bù guò qì.

   The sky outside was gloomy, and the weather was so stifling that it felt almost suffocating.

   Source: Dong Chinese Dictionary

6. 你的行为似乎源自阴暗的内心。

   nǐ de xíng​wéi sì​hū yuán​zì yīn'àn de nèi​xīn.

   Your actions seem to be coming from a dark place.

   Source: OpenSubtitles

7. 这部小说揭露了人性中阴暗的一面。

   zhè bù xiǎo​shuō jiē​lù le rén​xìng zhōng yīn'àn de yī miàn.

   The novel exposes the dark side of human nature.

   Source: Dong Chinese Dictionary