So, let's go back to the thrilling days of the end of the 19th century, and just take stock.

让我们回到激动人心的,19世纪末，稍微想一下。

麻省理工公开课 - 固态化学导论课程节选

And it would take at least an hour do a perfect simulation of the stock market.

而要做一个完美的股市仿真,至少要1个小时。

麻省理工公开课 - 计算机科学及编程导论课程节选