2 sentences

1. 他对自己的前途感到灰暗。

   tā duì zì​jǐ de qián​tú gǎn​dào huī'àn.

   He feels gloomy about his future.

   Source: Dong Chinese Dictionary

2. 天色灰暗，看起来要下雨了。

   tiān​sè huī'àn, kàn qi​lai yào xià​yǔ le.

   The sky is dark; it looks like it's going to rain.

   Source: Dong Chinese Dictionary