So one of the questions we've been asking is, how much of the world is used to grow food, and where is it exactly, and how can we change that into the future, and what does it mean?
因此我们常被问到的问题是 世上有多少土地被用于生产粮食？ 这些地方位于何处？未来将发生何种改变？ 这代表什么意义？