"If indeed we find some features in the CMB which are well fitted by a collision but are hard to explain otherwise, this would be a tremendously important development," he says.

“如果我们确实发现了些由碰撞产生的背景微波辐射特征，尽管这仍然很难给予解释，但它已经是个巨大且重要的进展。”他说道。

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A collision, a wrestling are probably the lives of vulnerable people's hard to imagine the harm caused.

一次碰撞、一次摔跤都可能给人的脆弱的生命造成难以想象的危害。

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But a cold hard physics fact is that something hurting though space at 18,000 miles a second could be torn up by a collision with the tiniest speck of dust imaginable.

但是一个更冷酷的物理事实是，以每秒18000英里的速度穿越太空，哪怕是能想到的最微小的尘埃，被它一碰都可能将航空器撕个粉碎。

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Kennedy remembers the first time he turned over in his chair after a hard collision with another player.

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He was hurt in a hard collision with the outfield wall a week earlier at Dodger Stadium that also caused him to need 11 stitches on his chin.

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The net effect will be to jerk the easy-money football away from Airline Charlie and produce a painful collision between his backside and the hard ground of economic reality.

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