3 sentences for 暗 (àn — to get dark)

1. 7月7日晚，天空越来越暗。

   7 yuè7 rì wǎn, tiān​kōng yuè​lái​yuè àn.

   On the evening of July 7, the sky became darker and darker.

   Source: CCMatrix

2. 正午的天空没有变暗。

   zhèng​wǔ de tiān​kōng méi​yǒu biàn'àn.

   The sky did not darken at noon.

   Source: CCMatrix

3. 天空逐渐变暗，雨也没有停止。

   tiān​kōng zhú​jiàn biàn'àn, yǔ yě méi​yǒu tíng​zhǐ.

   The sky gradually became dark, and the rain did not stop.

   Source: CCMatrix