Exactly how this happened is not known, but it involves biomolecules, molecules like DNA which are found in living things.

这到底是如何发生的尚不清楚，但它涉及生物分子，像在生物体内发现的DNA这样的分子。

As a result, the biomolecules were able to keep their natural shape.

结果，生物分子能够保然形状。

So one kind of biomolecule might get a blue color. Another kind of biomolecule might get a red color.

所以一种生物分子可能会变成蓝色。另一种生物分子可能会变成红色。

Various biomolecules in saliva absorb light at the same wavelength— but each has a distinct chemical fingerprint.

唾液中的各种生物分子吸收相同波长的光，但每一种都有不同的化学指纹。

And these molecules could react and start a sort of a reaction chain that would eventually lead to something like a biomolecule.

这些分子可以反应并启动一种反应链，最终产生类似生物分子的东西。

But the organic molecule that seems to be at the center of the chemical networks that can produce biomolecules is hydrogen cyanide.

但似乎处于可以产生生物分子的化学网络中心的有机分子是氰化氢。

Ice is not a biomolecule, but when it mixes with carbon, the atoms in ice molecules change to produce complex molecules – and that's when interesting things start to happen.

冰不是生物分子，但当它与碳混时，冰分子中的原子会发生变化，产生复杂的分子，——然后有趣的事情就开始发生了。