There she saw a big mass of water that was quickly advancing towards her.

在那儿，她看见大量的水向她快速袭来。

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It's true that when matter and antimatter meet, they do annihilate in a big explosion and convert their mass to energy.

这是真的，当物质和反物质相遇时，它们会在大爆炸相互湮灭，然后把它们的质量转换为能量。

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If a rocky planet is big enough - say, 10 times the mass of Earth - it can vacuum up so much hydrogen that its atmosphere ends up constituting most of the planet.

如果一个由岩石组成的行星足够的大——比方说，质量是地球的10倍——它可以吸收如此多的氢，以至于他的大气层最终会形成大部分的行星。

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But they have really had a big scaling down of the mass transit system this year.

但是今年确实大幅度削减了公共交通。

纽约的公共交通 - SpeakingMax英语口语达人

"When you have such a big mass in such a small space you have extremely high gravity, " said Charles Wang, a theoretical physicist at the University of Aberdeen, Scotland, who wasn't involved in the study.

WSJ: Einstein Proved Right on Gravity��Again

How do these numbers compare to those in the United States, the other large economy in the world with a big land mass?

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Like Bacardi, Don Q is a big manufacturer of mass produced Puerto Rican rum, but this one is much, much different.

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