Others point out that the first weather stations in the far north date back just 50 years.
另一些人指出,在遥远的北方建立的第一批气象站能追溯到50年前。
2
Do we know anything so far that we can point to that would give us a departure of this laws?
到目前为止,我们知道我们可以指出什么东西会让我们背离这些规律吗?
3
It has now reached a point where a growing number of people believe that it is far too high, and that bringing it down will be one of the great challenges of the twenty first century.