a simple piece of equipment for grinding grain, consisting of two round stones, called quernstones . The grain is pressed and broken between the two stones when the upper one is turned. 奎恩(quern):一种简单的用于磨碎谷物的设备,由两块圆形的石头组成,称为奎恩石/ ˈkwɜːnstəʊnz // ˈkwɜːrnstəʊnz /。转动上面的一块时,谷物在两块石头之间被压碎。 Word OriginOld English cweorn(e), of Germanic origin; related to Old Norse kvern and Dutch kweern.