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。
That is an extreme example, though.
虽然这只是一个极端的例子。
It's an extreme example, but it illustrates the point.
这当然是个极端的例子,但可以很好地说明这一问题。
应用推荐