If you did it in the lab or on your computer screen, you would do it by pushing buttons.

如果你在实验室做，或者在电脑上做，你需要按键。

耶鲁公开课 - 心理学导论课程节选

Anything that tells him to sense something like the user's mouse or the edge of his screen is actually purple in color; and so they're nicely colorized and all this but the one that's adventurous right now is this.

能够让计算机感知鼠标或屏幕边缘的图块,都是紫色的;,这些图块五颜六色,但这里有一个不太靠谱的按键。

哈佛公开课 - 计算机科学课程节选

They plug it in and make a keystroke error right off the bat.

乘完了,正好砸出击是出了一个按键错误。

麻省理工公开课 - 固态化学导论课程节选

In this case, this is one of the articles, in fact this was today's reading, I got here a little early so it was this particular article was assigned for today and-- but what shows up when you click on the initial tab is just the abstract of the article not the whole article itself.

例如这是其中一篇,实际上这是今天的资料,我今天到的比较早,所以把它放了上去,这是今天布置的文章,但当你们点击初始的按键时,只能看到文章的摘要而不是全文

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Conservation of keystrokes.

避免按键错误。

麻省理工公开课 - 固态化学导论课程节选

Then you go over here to where it says PDF and you click on that and that will allow you to download the whole article, which will look something like this.

之后找到并点击写着PDF的按键,这样就能下载全文了,就像这样

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选