我第一次回國是2000左右，站在天安門難見紀念堂，汙染很嚴重。當年離開北京，也是迫於汙染嚴重

來源: DHL 於 2015-12-20 08:47:48 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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