change with each passing day
The sun changes with the moon, the Chinese idiom, Pinyin is R ì y ì Yu è g è ng, meaning that the day is different, the month changes. It's fast changing. From Wu Za Zu Shi Bu San.
The origin of Idioms
In Wu Za Zu Shi Bu San written by Xie Zhaohe of Ming Dynasty: "the change of writing is changing with each passing day, so we can't criticize it."
Idiom usage
It changes quickly.
change with each passing day
Pull out the ground and shake the mountain - bá dì yáo shān
this regret shall last for evermore - cǐ hèn mián mián