So, I know this is a simple example and I can see everyone pretty much got it right, and probably those that didn't actually made some sort of clicker error is my guess.

分别是质子和电子,我知道这是个很简单的问题，你们大部分人都做对了,我猜那些没做对的大概是因为点错了。

麻省理工公开课 - 化学原理课程节选

In just a moment the hearts are gonna start flowing from bottom to top and the cookies are gonna start moving left and right and they seem to be somewhat synchronized with the music, perhaps based on trial and error by the student who implemented this one.

刚刚那一刻，那些爱心们从底部上浮到顶部,饼干人则向左向右移动,它们似乎都随着音乐的律动而变化着，也许这是那个制作该动画的同学,不断尝试的结果。

哈佛公开课 - 计算机科学课程节选

yeah I run this, yeah, I have a syntax error, yes indeed, because I forgot to comment that one out, all right, and cue, we'll try it again.

运行下，一个语法错误，确实是，因为我忘了把这里注释上了，好，让我们再来试试。

麻省理工公开课 - 计算机科学及编程导论课程节选

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