constantly changing
It's a Chinese idiom. Its pronunciation is bi à nhu à w ú ch á ng, which means things change frequently, have no regularity and are unpredictable. It comes from Zhuangzi · Tianxia.
Analysis of Idioms
[synonym] is changeable, unpredictable and unpredictable; and [antonym] remains unchanged, unchanged and unchanged
The origin of Idioms
"Zhuangzi · Tianxia" says: "the desert is invisible and changeable."
Idiom usage
In recent days, the weather has been fine for a while and it's raining heavily for a while.
constantly changing
with a snub nose and a wry mouth -- a very ugly face - bí tā zuǐ wāi