But have you ever seen artificial snow made from potato amylum? 可你见过用土豆淀粉制成的人造雪吗？
Artis had the idea of blasting the polar bear enclosure with artificial snow to encourage the natural behaviour of the bears, whose natural habitat is at the North Pole. 阿蒂斯动物园用人造雪布置熊舍的目的是为了鼓励这只北极熊的天性。
