That biochemical trick can cause new phages to be packaged not with viral DNA at all, but with long chunks of bacterial genome.

这种生化技巧可以导致新的噬菌体完全不是用病毒DNA包装的，而是用长段细菌基因组包装的。

Cas9 comes from bacterial genomes, but we, as genome engineers, have taken it and repurposed it for uses in the lab and for genetic medicine.

Cas9 来自细菌基因组，但作为基因组工程师，我们已经将其用于实验室和基因医学。