即使对于富豪级的外星人，那也可能难以承受。

Even for well-heeled aliens, that might be burdensome.

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这样的日子应该说在你奋斗了或长或短的时间以后是可以达到的，可是很多人，包括富豪级的人物也没能像猪一样的快乐。

This should be said that in the days when you struggle or long or short period of time is to be attainable, but a lot of people, including the wealthy class who have not as happy as pigs.

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包括科斯拉在内，共有10位十亿美元级富豪于4月28日签署该誓言，使总参与人达到69位。

Ten billionaires, including Khosla, signed the pledge on April 28th bringing the total number of signatories to 69.

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