So iron left to own devices in the atmosphere in the presence of a little bit of water, with the water form iron oxide.

铁在大气中，在存在,少量水的条件下，大气会开始与水结合产生氧化铁。

麻省理工公开课 - 热力学与动力学课程节选

It's great because there's huge expectation that we are gonna bring this agency back, that we are gonna restore EPA with places, the protector of air, water and land.

这么做很好，因为人们期待着,环境保护署重新回到视线当中，期待环境保护署能够重新，发挥对大气，水以及土地资源保护作用。

普林斯顿公开课 - 领导能力简介课程节选