When they are submerged into the hot underworld, this water triggers chemical transformations that allow tiny portions to melt into magma.

当它们被隐没在炙热的地下世界时，这些水触发化学变化，使小部分岩石熔成岩浆。

Well, if we start with the last term catalysis, that means that we are using a compound, a catalyst to drive another transformation, in this case, a chemical transformation.

如果我们从最后一项催化开始，这意味着我们用一种化合物，一种催化剂来驱动另一种转变，在这种情况下，一种化学转变。

So, if we use only one mirror image of the catalyst to drive our chemical transformation, we will get an enrichment of only one of two possible mirror images in the products.

所以，如果我们只用催化剂的一个镜像来驱动化学转化，我们只会得到产物中两个镜像中的一个。