22-11-25 几个世纪以来，冰淇淋是所有年龄段的人都喜欢的美食。如今，我们吃的冰淇淋比以往任何时候都多，这是为什么呢？需求如何影响冰淇淋的生产和消费？ Is there anything nicer than a cooling ice cream on a hot summers day? This traditional treat is centuries old,...