You are right, what matters is the total consumption

来源: cys254 于 2010-06-10 06:36:54 [] [旧帖] [给我悄悄话] 阅读数 : (21 bytes)
本帖于 2010-06-10 06:38:14 时间, 由版主 biglow 编辑

of the whole society.

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