发酵桶

例句：

1. 1. The beer is fermenting in the bottle.
   啤酒正在瓶中发酵。
2. 2. The scientist studied the chemical properties of sugar during fermentation.
   科学家研究了糖在发酵过程中的化学性质。
3. 3.Fermentation is a natural process that occurs when yeast converts sugar into alcohol and carbon dioxide.
   发酵是一种自然过程，酵母将糖转化为酒精和二氧化碳。