Meaning of biàn huà:
biàn huà
变化
Verb
(intransitive) to change; to vary
Tiānqì měinián dōu zài fāshēng biànhuà.
天气每年都在发生变化。
The weather changes every year.
Noun
change; variation (CL:個|个[ge4])
Jìnnián lái, zhège chéngshì fāshēngle jùdà de biànhuà.
近年来,这个城市发生了巨大的变化。
In recent years, this city has undergone tremendous changes.