This is discussed in detail in the textbook Don't panic if you don't get it quite now.

这在教材中已有详细的叙述,如果一下子理解不了也不用担心。

耶鲁公开课 - 心理学导论课程节选

If you're in that category, don't panic, you're going to get it.

如果你属于这种人，别灰心，你会成功的。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you have not seen the calculus that I'm about to use on the board, or more likely, if you've forgotten it since high school, don't panic.

如果你们没有见过我将要,在板书上写的表达式,或者说,高中毕业你们就忘了,没关系

耶鲁公开课 - 博弈论课程节选

So, if you have panic attacks, say, it's true that drugs might make the panic attacks go away, but the panic attacks are actually not your real problem.

比如说，如果你患上了恐慌症，或许药物确实能够治疗恐慌症的症状，但是恐慌症的症状却并不是你真正的问题。

耶鲁公开课 - 心理学导论课程节选

If you haven't seen it before don't panic.

如果没学过也没什么

耶鲁公开课 - 博弈论课程节选