Technology's impact will feel like a tornado, hitting the rich world first, but eventually sweeping through poorer countries too.
科技的影响就像一场龙卷风，首先袭击富裕国家，但最终也会席卷贫穷国家。
To be able to get these measurements, the scientists have to get a tornado probe near or into a tornado.
为了能够得到这些测量结果，科学家们必须在龙卷风附近或龙卷风内部安装一个龙卷风探测器。
One special tool is called a tornado probe.
一个特殊的工具叫做龙卷风探测仪。
Jason's father immediately realized that a tornado was coming.
詹森的父亲立刻意识到一场龙卷风要来了。
Scientists will try to guess where a tornado will go next.
科学家们将尝试猜测龙卷风接下来会去向何处。
If a tornado gets close, what should people do to keep safe?
如果龙卷风要来了，人们应该做些什么来保证安全？
They use special tools to measure (测量) what is happening in and around a tornado.
他们使用特殊的工具来测量龙卷风内部和周围发生的情况。
A tornado is a kind of strong storm with air which moves in a circle quickly.
龙卷风是一种空气快速循环的强风暴。
Some probes even have cameras, so the scientists can see and understand what it's like to be in a tornado.
一些探测器甚至配备有摄像头，所以科学家们可以看到并了解龙卷风内部是什么样子的。
It was then that I rushed in like a tornado, wasn't it?
就在那时，我像龙卷风一样冲了进来，是不是？
To form a tornado, cold air must sit above warm and moist air, and the wind needs to go in different directions at different heights, creating shear forces.
形成龙卷风，寒冷的空气必须处在暖湿的空气上部，而风应该在不同高度向不同的方向运动，以此创造出剪切力。
A tornado takes out your warehouse.
一场龙卷风将你的仓库夷为平地。
From there, it went like a tornado wind.
就在那儿，像刮来了一阵龙卷风。
Path of a Tornado in la Plata, Maryland.
马里兰州拉普拉塔斯龙卷风路径。
As if a tornado had ripped through Main Street.
就像是一场龙卷风横扫了大街小巷。
LEE: I understand. They think a tornado might come.
李：我懂了，他们认为龙卷风可能会来袭。
They had no idea a tornado was coming toward their house.
一点也不知道龙卷风正向他们的房子接近。
ELIZA: It means that a tornado has been seen somewhere in the area.
艾丽沙：就是有一个龙卷风已经在这个区域出没。
ELIZA: Yes. If a tornado has been spotted, they announce a "tornado warning".
艾丽沙：是的，如果龙卷风已经被监测到，他们就会宣布“龙卷风警报”。
So if there's a tornado warning on, it means a tornado is out there somewhere.
因此，若已提出龙卷风警报，那表示一个龙卷风已在某处。
On the top of it – heat pumps, wind generators and even a tornado generator.
管子顶部装有热泵、风力发电机以及飓风发电机。
ELIZA: There is a tornado warning on. My mother just told me she heard it on the radio.
艾丽沙：有一个龙卷风的警报，我妈刚刚告诉我她从收音机听到的。
On Wednesday, people roam streets leveled by a tornado in Tuscaloosa, Alabama, earlier that day.
星期三阿拉巴马州的塔斯卡卢萨，人们漫步在早先被龙卷风夷平的街道上。
On Wednesday, a tornado devastated the city of Tuscaloosa, Alabama, home to the University of Alabama.
星期三，一场龙卷风摧毁了阿拉巴马州的塔斯卡卢萨，这里是美国阿拉巴马大学所在地。
Forecasters in the United States can give an average warning time of 13 minutes before a tornado hits.
美国预报员平均能提前13分钟发出龙卷风警报。
There are even stories about a rain of fish and frogs caused by a tornado sucking them up and then dropping them.
甚至有传说讲龙卷风把鱼和青蛙吸到空中，又把它们扔下来，形成鱼蛙雨。
The best place to be in a tornado is in a basement or interior room of the lowest floor of a sturdy building.
龙卷风发生时，最安全的地方是地下室或牢固建筑的低层室内。
The best place to be in a tornado is in a basement or interior room of the lowest floor of a sturdy building.
龙卷风发生时，最安全的地方是地下室或牢固建筑的低层室内。
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