雾沉沉

shān shang wù chén chén de mó hu yī tuán

山上雾沉沉的模糊一团。

The mountaintop is hidden in the mist.

tiān qì wù chén chén de wǒ bù dé bù kāi chē kāi de hěn màn

天气雾沉沉的，我不得不开车开得很慢。

It was very foggy so I had to drive very slowly.