And we used the technology that allows us to synchronize his teaching materials beside the window where the video was playing.
另外,我们利用技术,将他的教学材料同步呈现在,播放录像的窗口边。
So, after clips of five seconds people are pretty good at predicting what sort of evaluations that person will have.
看了五秒钟的教学录像带后,人们就能准确地猜到,这个人的教学评估上写了什么。
So, they showed these clips for a full class.
于是他们让人看教学录像带。
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