CNN news 2011-02-07 加文本

1.The Muslim Brotherhood, the largest group of protesters, is speaking out against President Mubarak's government.
speak out against  公然反对, 大胆抗议

The newspapers are afraid to speak out against the government. 
 报界不敢大胆地讲出反对政府的话。 
 
2.In some cases, protesters have fought with police officers.

fight with  为反对...而战; 和...打架

Don't fight with your brother. 
 别和你弟弟打架。

3.And those forces have used tear gas to try to break up the crowds.
break up  打碎, 破碎, 分裂, 结束, 衰落, 分解, 变坏, 驱散

Police were called in to break up the meeting. 
 出动了警察将集会驱散. 
What will happen to the children if Peter and Alice break up ? 
 如果彼得和爱丽丝离婚孩子们将怎么办? 
In spring the ice-floes break up. 
 春天浮冰碎裂了. 
 
4.On January 28th, 1986 -- exactly 25 years ago today -- the space shuttle Challenger exploded less than two minutes after liftoff, killing all seven people on board.
on board  到船上, 在船上; 在飞机上，上飞机

That ship and all hands on board were lost on the reef. 
 那条船连同全体船员都触礁遇难了。 
Everyone on board saw it and everyone thought,"UFO" Unidentified Flying Object. 
 机内的人都目睹这一景象，大家都认为这就是不明飞行物。
 
5.The fifth graders at Francis Scott Key Elementary School in Arlington, Virginia know quite a bit about space.
quite a bit  相当多

There is quite a bit of water between Kissinger and the President on the agreement. 
 基辛格和总统在协定问题上存在不少分歧。 

6.Pond is one of so many who teach because of Christa McAuliffe.
because of  因为

I didn't go out because of rain.
 因为下雨, 所以我没有出去。