2 sentences

1. 深夜的街道冷清而寂寞。

   shēn​yè de jiē​dào lěng​qīng ér jì​mò.

   The streets late at night are deserted and lonely.

   Source: Dong Chinese Dictionary

2. 下雨天，公园里的游客很少，显得十分冷清。

   xià​yǔ​tiān, gōng​yuán lǐ de yóu​kè hěn shǎo, xiǎn​de shí​fēn lěng​qīng.

   On rainy days, there are very few visitors in the park, making it feel quite desolate.

   Source: Dong Chinese Dictionary