Because this material doesn't decay very quickly.

因为这种材料不是很快腐烂。

I think that they should store the water so that it decays naturally.

我认为他们应该把水储存起来，这样它就会自然干涸。

Brains may decay first, but decaying guts are much worse.

大脑会最先腐烂，但是内脏腐烂是更棘手的。

This mix must be isolated from the environment until it has all safely decayed.

这种混合物必须在它变得安全稳定化之前从自然环境中隔离出来。

Detroit is the poster child for urban decay.

底特律成了都市衰退的典型代表。

After a month, your decaying teeth will form cavities.

一个月后，就会形成蛀牙。

The good news is that you can prevent tooth decay!

但我们能够防止龋齿发生，这的确是个好消息！

It's providing a means of deciding where the gum has decayed.

它作为一种手段帮助诊断牙龈炎。

Because water fosters bacteria, excess moisture on food can speed up decay.

因为水会滋生细菌，食物上多余的水分会加速腐烂。

They glory in decay and despair.

它们以腐化和使人绝望为乐。