0% That's right. That's the point at which you are getting to the top 10% of the US tax payers.- Yeah And only after that, does the scale increase.

没错，只有美国纳税人的前,才需要捐赠这么多。，-是的,在这之后，捐款率才会增加。

普林斯顿公开课 - 人性课程节选

And that, you know, a lot of taxpayers' money is poured into the projects,

纳税人的很多钱被投向了这些工程，

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And it starts off with just 1% for 90% of the US tax payers.

对于90%的美国纳税人来说。

普林斯顿公开课 - 人性课程节选