化学是关于最小的物体构成其他更大的物体，以及当它们变化时会发生什么的一门学科。

Chemistry is about the smallest things that other bigger things are made of, and what happens when they change.

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它的确通过减少重复代码和使得代码更经得起变化给我们带来了巨大的好处，最终一门完备 的语言不应该需要这样的第三方库。

While it does give us great savings by reducing repetitive code and making code more tolerable to change, ultimately a complete language should not require this of us.

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顾客们通过各种方式安装这些酒窖，从开闭式门的变化到入口都有意识地加强他们的特点。

Customers have had these installed in all kinds of ways, from flush - and hidden-door versions to entrances that intentionally boast their presence.

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The balance of sodium movement relative to potassium movement changes because there's this resting movement of all these molecules anyway, but that balance changes dramatically when these ion - when these gated ion channels open.

钠钾各自运动始终保持动态的平衡,因为尽管在静息状态,所有这些离子也在运动,但是平衡的剧烈变化,只发生在这些门控离子通道打开的时侯

耶鲁公开课 - 生物医学工程探索课程节选