The improve situation meant that families could afford to put more land under cultivation.

情况的改善意味着家庭有能力耕种更多的土地。

And they put more land under cultivation, and put up the main building five years ago.

他们还开垦了更多的土地，五年前就盖起了主楼。

But from the perspective of the planet, each turn in that cycle takes something: More land under cultivation, more carbon emissions, more resource extraction.

但从地球的角度来看，这个周期的每一个转折都会带来一些影响：更多的耕地、更多的碳排放、更多的资源开采。

Oxen, when combined with their plows, made it possible to bring more land under cultivation and also made transportation easier and more efficient, and plus European animals remade culture.

牛与犁相结合，可以开垦更多的土地， 也使运输更容易、更高效， 再加上欧洲的动物重塑了文化。

In the ten years that followed,100,000 people from the Middle West and the South, responding to his call, went to the Western country where they brought eight million acres of prairie land under cultivation.

此后十年间，中西部和南部的十万人响应他的号召，奔赴西方国家，耕种了八百万亩草原。