看看这些工厂排放到空气中的污染物。

Look at all the pollutants going into the air from those factories.

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无意或有意地，它们中的许多被排放到河流和湖泊中。

Accidentally or on purpose, many of them are discharged into streams and lakes.

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随着这些新城市的土地被开垦——尤其是在茂密的热带森林中——碳也会被排放到大气中。

As land is cleared for those new cities—especially in the densely tropical forests—carbon will be released into the atmosphere as well.

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When an action potential comes down this pre-synaptic axon, when it reaches this point here, it sets off the process of these vesicles dumping their content into the synaptic cleft.

当动作电位到达轴突的突触前膜时,当到达这一点时 小泡就将其内含物,排放到突触间隙中去

耶鲁公开课 - 生物医学工程探索课程节选