Let's go get this done. Thank you everybody. God bless you,". Mr.Obama went to the arena where John McCain accepted last year's Republican presidential nomination, and said the nation can no longer afford to play games with health care.

VOA: standard.2009.09.12

I should have done this earlier by typing the Cartesian form earlier, so let me go back to where I was, sorry for that, let me go make this a 1 again.

我应该早点通过输入笛卡尔形式,来说明这个的，那么让我回到刚才说到的地方，很抱歉，让我去把，这个a，1再做一遍。

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