n.酵母（菌）；酵母粉，酵母饼，酵母片；泡，泡沫；动乱，激动vi.发酵；起泡沫； 变形： 复数：yeasts过去式：yeasted过去分词：yeasted现在分词：yeasting第三人称单数：yeasts 英英释义： yeast[ ji:st ]n.a commercial leavening agent containing yeast cells; used to raise the dough in making bread and for fermenting beer or whiskey同义