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。

麻省理工公开课 - 媒体、教育、市场课程节选

That's on tape, that's you know, you get on the early VHS and recording tapes as well, cassette players.

会卖磁带，你得用早期的家用录像系统、录音磁带或录音机播放。

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