" And it's replacing the old song as it goes."

“它在传播过程取代了老歌。”

That's, in part, what makes it airborne.

这在某种程度上使其能在空气传播。

These videos that are circulating are going viral.

这些视频在广泛传播走红。

Why is Omicron speeding through the population?

为何奥密克戎在人群传播如此迅速？

A light year is the distance light travels in a year.

光光在传播的距离。

One light year is the distance light travels in a year.

光光在传播的距离。

Ebola does not travel through the air like the flu, for example.

埃博拉病毒并不会像流感样在空气传播。

A light year is the distance that light travels in one Earth year.

光指光在真空传播经过的距离。

They fear it might spread more easily among people.

他们担心这种新猴痘可能会更容易在人群传播。

A light year is the distance light travels in one year.

光光在传播的距离。

It sounds like science fiction, but it's real, and it's spreading.

这听上去像幻小说或影片里才会有的事，其实真的，而且还在不断传播。

A light-year is the distance light travels in a year, 9.5 trillion kilometers.

光光在传播的距离，9。5万亿公里。

The findings suggest that asymptomatic cases are important in the spread of the virus.

研究结果表明，无症状感染病例在病毒传播非常重要。

Yeah, coccidia can go through the whole flock.

的，球虫可以在整个鸡群传播。

So they’ve actually written the speech to make it easier to share on social media.

这样的演讲更利于在社交媒体传播。

In that same time, bacterial life did spread across the watery globe.

与此同时，细菌生命在全球水体传播开来。

He dedicated his life to communicating the wisdom he had gained in prison.

他毕生致力于传播他在监狱获得的智慧。

However, diseases have spread among human populations throughout history.

然而，纵观历史，疾病直在人类群体传播。

When they are lifted, covid-19 will spread again among people who are still susceptible.

封城解除后，新冠肺炎将再次在易感人群传播。

A light year is the distance light travels in a year – about 9.5 trillion kilometers.

光光在传播的距离，大约9.5万亿公里。