n.发酵；酵素；动乱
v.（使）发酵；动乱
He is doing a research in beer ferment. 他正在进行对啤酒发酵的研究。
The country was in ferment. 这个国家处于动荡不安之中。
用作动词 (v.)When wine is fermented it gives off bubbles of gas. 酒发酵时会放出气泡。
We ferment the grapes for a very long time to achieve high alcohol content. 为了使葡萄酒有较高的酒精含量，我们让它发酵了很长时间了。
The news fermented trouble among the factory workers. 那则消息在工人中引起骚动。
