這個也許是造成美國平均壽命在發達國家中處於最低的原因。不如日本，英國，連加拿大也不如。

來源: needtime 於 2014-11-06 15:06:05 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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