酵母质

例句：

1. 1. Yeast is a type of fungus that can be used to make bread and other baked goods.
   酵母是一种可以用来制作面包和其他烘焙食品的真菌。
2. 2. In brewing, yeast is the active ingredient in beer and wine.
   在酿造中，酵母是啤酒和葡萄酒的活性成分。
3. 3. The yeast in this recipe needs to be activated before it can ferment sugar into alcohol.
   这个食谱中的酵母需要在发酵前激活，才能将糖转化为酒精。