After a briefing by U.S.Coast Guard Admiral Thad Allen, who is in charge of the overall government response, the president said he wants people along the Gulf of Mexico to know that the government,as he put it, is in this for the long haul.

VOA: standard.2010.06.14

And this is a very fast speed, of course, it's about 700 million miles per hour. So, one way to put that in perspective is to think about how long it takes for a light beam to get from earth to the moon. Does anyone have any guesses? Eight seconds, that sounds good.

当然这是一个非常快的速度，它大约是每小时7亿英里,为了更形象化，我们,看看光从地球到月球,需要多少时间，你们猜猜是多少？,8秒，猜的不错。

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