We compared Los--we couldn't go back in a time machine and do questionnaire surveys in the 1880s, but we could do it in the 1980s.
我们不能坐着时光机,回到19世纪80年代去做问卷调查,但是在20世纪80年代却可以
Yeah, if my machine will come back up, there we go. So, I'm going to now go ahead and write a little piece of code, and I put it here and I hope you can actually see these better this time, let me uncomment that region.
让我们写出代码来吧,好,如果我的电脑能回来的话,好了,那么,我要去写一小块代码,我把它放在这里以期望大家这次,能看的更清楚点。
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