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。

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！

As the submerged vegetation decays, it releases methane or CO2.

水下植被腐烂后，会释放出甲烷或二氧化碳。

Because this material doesn't decay very quickly.

因为这种材料不是很快腐烂。

When a D0-meson decays, it produces daughter particles called pions and kaons.

D0-介子衰变时会产生叫做π介子和K介子的子粒子。

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。

But bones resist such decay due to their structure.

但因为它们的结构，骨骼能抵抗这种腐烂。

Everything in the world decays, except for maybe Truth.

世界上的一切都会衰亡，也许除了真理。

Nor gates of steel so strong, but Time decays?

终必在时间的磨砺下消殒。

In fact, bones do decay, albeit very slowly.

事实上，骨头确实会腐烂，尽管速度很慢。

Decomposition you know of like animals, animals decay.

腐烂，像动物一样腐烂。

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。

Outliving beauty's outward with a mind that cloth renew swifter than blood decays.

用心灵来超越外表的美丑。因为心灵再生的速度超过了血液的衰老。

Since Ebbinghaus's days, our understanding of how memory decays has come a long way.

自艾宾浩斯的发现以来，我们对记忆如何衰退的理解取得了长足的进步。

This causes them to rot, so that they gradually decay and fall into the lake.

这使它们腐烂，逐渐腐烂，掉进湖里。

This waste, it takes takes 20 to 30 years before they decay. Where are they going to?

“这些需要二三十年才能降解掉的垃圾要如何处理？”

It begins to decay and emit positrons, aka, anti electrons.

它开始衰变并释放正电子，也就是反电子。