It's a reliable and constant conductor of electricity that does not oxidize.

它是一种可靠、恒定的导体，不会氧化。

You're basically freeze-drying it, although the food might also oxidize and turn brown.

你只是在冻干它，即使食物可能会氧化变为褐色。

The dust is rich in iron that's oxidized, forming rust.

这种尘埃富含被氧化而形成锈迹的铁。

It was linseed oil — the paint's main ingredient — that had oxidized.

是亚麻籽油——油漆的主要成分——被氧化了。

One is that your skin produces fewer antioxidants, so more fats get oxidized.

一是你的皮肤产生较少的抗氧化剂，所以更多的脂肪被氧化。

But any battery has a finite supply of metal, and once most of it has oxidized, the battery dies.

但是任何电池的金属补给都是有限的，一旦金属的大部分被氧化，电池就无法工作了。

This is known as oxidizing, and it's how we get things like rust.

这被称为氧化，这就是生锈的原因。

This would cause things to oxidize, including large bodies of water, turning into hydrogen peroxide.

这将造成物体的氧化，包括大量水体，它们将变成过氧化氢。

So then, how does it become oxidized?

那么，胆固醇是如何被氧化的呢？

Free radicals which can oxidize cholesterol and thus lead to heart disease.

自由基能氧化胆固醇，从而导致心脏病。