當年古羅馬人看到中國綢子大概也想自己做，但過了一千多年也沒有做出來。大飛機，半導體等等我們也不用太急著去做出來吧？

來源: 泥中隱士於 2021-02-28 09:46:38 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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