mini還是全文聽(tīng)寫(xiě)模式，很多童鞋可能進(jìn)來(lái)看到【專(zhuān)八】可能會(huì)有點(diǎn)膽怯，剛開(kāi)始是會(huì)感覺(jué)到有點(diǎn)吃力哦，但這就是專(zhuān)八。希望大家可以耐心的認(rèn)真聽(tīng)寫(xiě)O(∩_∩)O~

Hints:
World Trade Center
Well, my topic today is Architecture, and to be specific, what I am going to talk about is World Trade Center - the skyscrapers. After watching the twin towers of the World Trade Center collapse, twice reducing 110 stories to five in less than a minute, it's hard to see how the buildings could have ever been considered safe. It's even harder to see how engineers can look at the events of September 11, 2001, as a relative success in terms of architectural strength. Consider this: the rubble at the site weighed a million tons. The site spanned a vast 16 acres. The nonstop cleanup, conducted day and night, still took the better part of a year. Even if the greatest loss - so many human lives - is excluded, there's no arguing: this was, in all senses, an enormous disaster.