Did I miss one there? This is what may, in fact, happen to you over time.

我错过了什么吗？事实上，这也许就会发生在你身上。

哈佛公开课 - 计算机科学课程节选

So sometimes, if you miss a class, you can just kind of check in earlier years, like lectures,

所以有时候，如果你错过了一节课，你可以看看前几年的讲座，

开放式的课程？ - SpeakingMax英语口语达人

But time is ticking away and you're afraid that you might miss your movie.

时间一分一秒地过去了，你开始担心要错过电影的开场。

I need 课堂 - SpeakingMax英语口语达人