Next, decrease impervious surfaces by removing any pavement that can be replaced by something else or something more efficient.

接下来，通过移除任何可以用其他东西或更有效的东西代替的路面来减少不透水的表面。

And we clothe it in brick and concrete and glass and steel, which are impervious surfaces that plants can only root in with the greatest difficulty.

我们用砖块、混凝土、玻璃和钢材覆盖它，这些都是不透水的表面， 植物很难在其中扎根。