Milk and milk products provide about 20% of the total protein consumed across the world.

全球每年所消费的蛋白质中有20%是乳及乳制品提供的。

youdao

So it is predicted that there will be a 50% increase in total demand for animal protein over next 20 years, of which milk consumption is one of the major protein sources.

因此，预计在未来20年内对动物蛋白的需求总量将会有50%的增长，其中牛奶是主要的蛋白质来源之一。

youdao