This is the first time he have heard of tornado.

这是他第一次听人说起龙卷风。

youdao

This is the first time he have heard of tornado .

这是他第一次听人说起龙卷风。

youdao

It isn't the wind of tornado you see. It's the havoc it creates.

但你看到的并不是龙卷风的气流，你看到的是它制造的灾难。

youdao

To safely capture up-close film footage of tornadoes, some project participants traveled in a seven-ton, armored tornado intercept vehicle directly into tornadoes as they formed.

VOA: special.2011.04.19

The National Oceanic and Atmospheric Administration keeps records of tornado sightings.

VOA: special.2010.05.11

In the United States, the force of a tornado is judged by the damage to structures.

VOA: special.2010.05.11

Dozens of tornado warnings were issued for central Oklahoma and parts of Missouri, especially near St.

WSJ: Tornado-Hit Oklahoma Struck Again; Death Toll Up to 9

April and May are the heart of tornado season, which unofficially runs from March through June.

FORBES: Global Warming Taking The Wind Out Of Tornadoes

Many thanks to those of you who sent comments, pictures and video of Tornado.

BBC: Beer, steam, speed - and money