What is the most destructive force for natural enviroment ?

对于自然环境来说，什么是最大的破坏力量？

In illustrator we have a simple 2d path , now we can move in a 3d enviroment and that will give a nice effect .

我们有一个简单的二维道路，现在我们可以在3d环境，而且将一个不错的效果。

If I were the patient , I hope to see a hospital owning the elegant and sanitary enviroment .

假如我是一个病人，我希望见到一个环境优雅、窗明几净的医院。

Most trees branch thickly in suitable enviroment .

大多数树木在适宜的环境里茂密地分出枝权。

We should make everybody know that white pollution is a big menace to our enviroment .

我们应该让每一个人都了解白色污染对环境是一种大的威胁。