提示：点击例句中的单词，就可以看到词义解释

So we concluded that the cause was environmental .

因此我们认为是环境引起了疾病。

They had only one goal : to prevent environmental destruction .

这些环保组织只有一个目标：防止对环境的破坏。

The environmental equations aren 't simple .

维护环境平衡不是简单的事情。

Enter environmental hygiene engineer pettersson .

现在看看环境卫生工程师彼得森怎么做吧。

And what about the environmental concerns ?

那环境方面的问题怎么办呢？