飛機運一人，消耗的能量是高鐵的７倍，大規模依賴航空，等於大規模（７倍）加重汙染。

來源: 路邊的蒲公英於 2019-01-31 09:55:29 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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