HSK 7-9
发酵
fājiào动
to ferment; (fig.) (of trends, emotions or repercussions etc) to bubble away; to simmer; to develop
面团需要温暖环境发酵。
Miàn tuán xū yào wēn nuǎn huán jìng fā jiào.
The dough needs a warm environment to ferment.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.