It was a real eye-opener. I have one question though: Is there a mistake in the captions? It seems to me that the World Trade Center wasn't built very long ago, but the text says 1976.
但是，有一個問題：印象中，世貿中心才建不久，可是文中說建於民國六十五年（第十七頁圖片的文字說明）是否錯了？