例句與造句

1. It could be that bean-mash doesn't promote the growth of the natural surface yeasts which would result in a alcoholic beverage, or the beans are too contaminated with other yeasts and bacteria which would cause vinegar or other fermentation products, instead of alcohol .-- talk ) 17 : 12, 4 May 2008 ( UTC)
2. It's difficult to find surface yeast in a sentence. 用surface yeast造句挺難的