Crucial ecological relationships are in tatters here, and as a result, this native grassland is now far more endangered than any tropical rainforest.

这里重要的生态联系正处于支离破碎的边缘，其结果是，这里的天然草地比任何的热带雨林更为濒危。

You see, in here is the largest piece of native Australian grassland left in this region, and this fence is helping keep out a whole load of animals that they don't want in here.

你看，这里这里是本地剩下的最大的一块自然草场，这个围栏所起的作用就是阻挡住那一大群他们不想让其进入围栏内的动物。

The native grasslands had been plowed to plant  wheat, and when the crops died, the dry earth that had previously been held in place by the roots  began to blow away.

原生草原已被耕种以种植小麦，当庄稼枯死时，原先被根部固定住的干土开始被风吹走。