如果你是一个细菌，你的一生就是游向营养物，逃避那些会杀死你的东西。

If you're a bacterium, your whole life is about swimming to nutrients and running away from things that would kill you.

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这表明细菌的化学合成并不是这些生物的充足营养来源。

This suggests that bacterial chemosynthesis is not a sufficient source of nutrition for these creatures.

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细菌的能量代谢是以化学营养为基础的。

Energy metabolism of bacteria is based on chemotrophy.

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In fact, that's their preferred state is suspended in a fluid where nutrients are widely available to them, and where they can swim from one spot to another in order to get the nutrients they need, or in order to run away from toxic compounds.

事实上,细菌更喜欢生活在,营养丰富易得的悬浮液中,它们可以从一个点游动到另一点,以获取所需营养,或逃离有毒物质

耶鲁公开课 - 生物医学工程探索课程节选