It was frightening. The fastest evacuation route was through river rapids.

很吓人的。最快的疏散路线是河的。

Clear air turbulence is generated by wind shear in the jet stream.

晴空湍是中的风切变产生的。

One of these schools is Forest Hills school district, near Grand Rapids, Michigan.

密歇根州大城附近的森林小丘校区采用的就是这种方法。

Here is the current that many people see is scary or causes them anxiety.

这就是引起很多人害怕和恐慌的。

Here it's the current that many people see is scary or causes them anxiety.

这是许多人所看到的令人恐惧或使他们焦虑的。

Crossing such a torrent poses a huge threat to a little one.

穿越这样的小象来说是一个巨大的威胁。

Firefighters here rescued a motorist stranded in rushing waters.

消防人员救出了一名被困在中的司机。

Away from these rapids, flat lizard populations are found in much smaller numbers.

在远离这些的地方，扁石蜥的数量则要少得多。

There are advantages to life in the fast stream.

这些动物拥有在中生存的先天优势。

It roared well over its banks, rushing swiftly with tree limbs caught in the raging current.

它咆哮着冲上两岸，夹杂着被冲下的树枝，汹涌奔腾。

This is what we get if you have a lot of big animals in fast flowing water.

这就是当有很多大型动物在中时会出现的情况。

And he just became the Guinness World Record holder for performing the first skydive into the jet stream.

他刚刚成为吉尼斯世界纪录的保持者，因为他是一个在中跳伞的人。

That divide is the jet stream or strong currents of air created when warm and cold air masses meet.

这条界线是暖气团和冷气团相遇时产生的或强。

In 1945, Grand Rapids, Michigan and Newburgh, New York were among the first communities to start fluoridated water artificially.

1945 年，密歇根州的大城和纽约州的纽堡成为最早开始人工添加氟化物的社区之一。

Downpours on Saturday were rapidly turned the creeks that run behind backyards and through downtown Waverly into raging rapids.

周六的倾盆大雨迅速将经后院并穿过韦弗利市中心的小溪变成了汹涌的。

When the frigid jet stream bumps hard against humid air generated by the Gulf Stream in the Atlantic, meteorological mayhem results.

寒冷的猛烈撞击大西洋湾产生的潮湿空气会引发气象灾害。

This cosmic stream is like celestial rapids.

这宇宙就像天界的。

And remember the jet stream is created where warm southern air meets cold northern air.

请记住，是在温暖的南方空气与寒冷的北方空气相遇的地方产生的。

My name is Nora, and I'm five, and I live in Grand Rapids, Michigan.

我叫诺拉，今年五岁，住在密歇根州的大城。

Thank you all for watching in Grand Rapids, Michigan.

感谢密歇根州大城的所有观众。