我也總在想那兩個燈泡壽命真長，算下也就瓦特發明燈泡後的五十年後的產品，了不起。

來源: 一碗麥片粥於 2014-09-30 13:35:41 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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