fermentation stage

例句：

1. 1. The fermentation stage is crucial for the growth of bacteria.
   发酵阶段对细菌的生长至关重要。
2. 2. During the fermentation stage, the enzymes break down complex carbohydrates into simpler ones.
   在发酵阶段，酶将复杂的碳水化合物分解成更简单的物质。
3. 3. The fermentation stage is also important for the production of alcoholic beverages.
   发酵阶段对于酒精饮料的生产也非常重要。