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But such fast trains would take a long time to put in place in the United States.

VOA: special.2011.02.11

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。

麻省理工公开课 - 化学原理课程节选

I put off using Facebook for a long time.

很长时间以后我才开始使用Facebook.

便利的社交媒体 - SpeakingMax英语口语达人

Alternatively, long a FXY put.

FORBES: Bull Markets Brewing China And Japan But For Different Reasons

Ms Turner admitted she was "overwhelmed" by what she saw, did not check Miss Barton's chest, did not use a heart monitor correctly and took too long to put a canula in.

BBC: Norfolk ambulance delays in Catherine Barton crash death

America's immigration policies have long put a higher priority on family reunification than on employment.

ECONOMIST: Skilled immigration