yeast|yeasts

做面包时，你需要加入酵母才能让面团发酵。

When making bread, you need to add ___yeast to make the dough rise.

酿酒师使用酵母将糖分转化为酒精。

Brewers use ___yeasts to convert sugar into alcohol.

这种啤酒的特殊风味来自其中添加的酵母。

The unique flavor of this beer comes from the ___yeast added to it.