CNN news 2010-09-08 加文本

1.Number two, I believe this with every fiber of my being: America cannot have a strong, growing economy without a strong, growing middle class,and the chance for everybody, no matter how humble their beginnings, to join that middle class.

without表示虚拟条件

no matter how不管怎样,无论多么

例句：No matter how hard it is, I'll learn how to do it.
      什么难学不难学， 我保证学会。

2.Deputy Jeremy Battle arrived first on scene to this car fire near exit 317 on interstate 75.

on scene现场

3.A passerby helped, but the deputies knocked out a window and saved 56-year-old Dan Gloth from Cartersville.

knock out用锤等敲掉; 打掉

例句：He knocked the nail out.
      他把钉子敲了出来。

      He knocked his pipe out before refilling it.
      在装烟丝之前, 他磕出了烟斗里的烟灰。