2009年6月11日，墨西哥首次爆发的猪流感被宣布为全球流行病。

The outbreak of swine flu that was first deteccted in Mexico was declared a global epidemic on June 11, 2009.

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如果这种病毒能够通过空气传播，或者如果一名感染者在不知情的情况下进入了人口密集的地区，那么埃博拉可能已经成为一种全球流行病。

If the virus had been capable of spreading through the air, or if one infected person had unknowingly entered a large population center, Ebola might have become a worldwide epidemic.

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高血压是一种全球流行病。

High blood pressure or hypertension is a global epidemic.

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We have seen the rise of a whole set of threats that we're not prepared to deal with, from climate change to global epidemics.

我们发现危机重重,我们还没有应对的准备，从气候变化到全球范围内的流行病。

普林斯顿公开课 - 国际座谈会课程节选

There are global epidemics.There is climate change.

有全球范围内的流行病，有气候变化问题。

普林斯顿公开课 - 国际座谈会课程节选