a leaven of dough in which fermentation is active; used by pioneers for making bread
a settler or prospector (especially in western United States or northwest Canada and Alaska)
造句
用作名詞(n.)
Seal it and store in a refrigerator for at least a week before making it into pies with a sourdough pastry. 將其密封好，放入冰箱至少保存一個星期，之后，用酵母餡餅皮把它做成餡餅。
All tufei sourdough breads are raised by our wild yeast starters where no commercial yeast is added throughout the long fermentation process. 所有土匪天然酵母面包均培養自我們的天然酵母面包種，在漫長的發酵過程中絕無添加任何商用酵母或化學劑。