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。

youdao

Several small masses cold be connected each other to become one big mass.

或数个小包块连结成一个大包块。

youdao

If the magnetic stress bears up the gravitation in the stellar evolution, the big mass neutron star over the neutron - star mass can not collapse into a black hole.

如果在恒星演化过程有磁应力来支撑引力，超过中子星质量上限的大质量中子星则不致于坍缩成黑洞。

youdao

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?

FORBES: China's Insatiable Appetite For Heavy-Duty Trucks

The key event will be the big outdoor mass celebrated by the pope on Sunday and German organizers are still hoping one million young people will attend.

NPR: Pope Arrives in Cologne to Address World Youth Day