So being a micro-organism that got a plasmid that give you resistance to an antibiotic would be a good thing - that gave you resistance to something that naturally killed cells like you in your environment would be a good thing.

假如一个微生物,因含有质粒而具有抗生素抗性,这实在是一桩美事--,在同样的环境下,普通细胞会被杀死,而你们这些具有抗性的细胞却安然无恙,这实在太棒了

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And here, they're geared more towards just making sure that everyone is okay,

在法学院，这些政策是为了保障每个人都安然无恙，

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