CNN news 2010-09-28 加文本

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例句：It does not matter at all.
      毫无关系。

      It doesn't matter throwing that away.
      把它扔掉, 没关系。

2.Why does it matter that a bunch of leaders are having a meeting?

a bunch of一束,一串,一群

3.But the decisions that they make and the policies that they come up with can have a big influence on what goes on in the world.

come up with想出, 提出

例句：I hope you can come up with a better plan than this.
      我希望你们能提出一个比这个更好的计划。

4.For example, you can stay on your parents' health insurance until you're 26, and insurance companies can't turn down children with medical conditions that exist at the time they apply for insurance.

turn down拒绝

例句：We have turned down four applicants already.
      我们已拒绝了四位申请者。

      His request for a rise was turned down.
      他要求加薪, 被拒绝了。