ferment²

vt.

1. 使發酵
   When wine is fermented, it gives off bubbles of gas.

   酒發酵時發出氣泡。

2. 醞釀
3. 使騷動
   His speeches fermented trouble among the work force.

   他的講話在工人中引起騷動。

vi.

1. 發酵
   Fruit juices ferment if they are kept a long time.

   果汁放置日久會發酵。

2. 騷動