当代愚公!
来源:
八不戒
于
2011-08-04 19:43:49
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$3,000,000 / $20 / 365 (day) / 40 (year) = 10.27 (times/day)
同学们那,这才是当代愚公啊!挖山不止,一日十次,四十年啊!