ferment

1. N-UNCOUNT Ferment is excitement and trouble caused by change or uncertainty. 騷動

The whole country has been in a state of political ferment for some months. 整個國家幾個月來一直処在政治騷動的狀態中。

2. V-T/V-I If a food, drink, or other natural substance ferments, or if it is fermented, a chemical change takes place in it so that alcohol is produced. This process forms part of the production of alcoholic drinks such as wine and beer. 使發酵; 發酵

The dried grapes are allowed to ferment until there is no sugar left and the wine is dry. 乾葡萄要經過發酵，直到沒有糖分存畱，葡萄酒才不會有甜味。

3. fermentationN-UNCOUNT 發酵

Yeast is essential for the fermentation that produces alcohol. 酵母對釀酒的發酵是必要的。