" You couldn't build a modern skyscraper with Roman concrete, " Oleson said. " It would collapse when you got to the third story."
“你不可能用罗马混凝土建造一座现代化的摩天大楼,当你建到第三层时,它就会倒塌。”
当月 VOA Special English
Even in places where seawater has been hitting structures for ages, you will find concrete " basically the way it was when it was poured 2,000 years ago," said John Oleson.