President Obama wants to expand health coverage to all Americans and, at the same time,control costs.

VOA: special.2009.07.25

So let me expand on that very slightly, and again we did this last time but I want to do one more time. I have to be careful about how I'm actually implementing a list.

我们之前做过了一次,但还是再做一次吧,我得小心的在列表中执行,例如在这个例子中。

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