北面是内布拉斯加州平坦肥沃的农田。
To take an extreme example, farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop.举个极端的例子,以单一作物为主的农田是如此不稳定,一年的坏天气或单一害虫的入侵可以摧毁整个作物。
Using this biofuel, corn ethanol, in cars will increase the demand for corn which, in turn, will lead to more farmlands created to supply the crops.在汽车中使用玉米乙醇这种生物燃料,将增加对玉米的需求,进而导致人们开垦更多的农田来供给农作物。