But after recombination, the photons were free to fly.

但在重组后，光子飞行。

When the Universe was still ionized, prior to recombination, it was opaque.

当宇宙还处于电离状态时，在重组之前，它是不透明的。

The other repair mechanism is called homology-directed repair which relies on homologous recombination.

另一修复机制依赖于同源重组，叫作同源介导修复。

Recombination is the random mixing of the DNA of two creatures.

重新组合就是两生物DNA的随机混合。

The second recombination occurs when a male inseminates a female.

第二次就是在雌性受精的时候。

Two very interesting factors come into play in this process: recombination and mutation.

重新组合和突变。

Within the original host, let's say a duck, the virus may mutate over time: either independently, or by recombination with a gene segment from a different virus.

在最初的宿主中，比如一只鸭子，病毒随着时间发生变异：要么是独立的，要么是与另一病毒的基因片段重组。

It is the endless recombinations of our genomes - each nearly identical, but not quite - that make us what we are, both as individuals and as a species.

正是我们基因组的不断重组——每个基因组大体上相同，而又不完全相同，使得我们成为现在这个样，既是许多个体，又是一个物。

Inflation explains why the Universe was so smooth at the time of recombination: space expanded so rapidly that any lumps in it were smoothed out, like pulling on a bedsheet to flatten out the wrinkles.

空间膨胀得如此之快，至于其中的所有肿块都被弄平了，就像拉一张床单把褶皱弄平一样。