正如长期失眠后经常发生的那样，他总是莫名其妙地惊慌。

As often happens after long sleeplessness, he was seized by an unreasoning panic.

youdao

这类问题是经常发生的。

This kind of problem frequently crops up.

《新英汉大辞典》

但是在软件设计中却是经常发生的问题。

And that's often the problem with software.

youdao

We'll talk more about this later, but it often happens that when you change your program to solve one problem you break it, and things that used to work don't work.

我们以后会更多的去讨论者一点，但是经常发生的情况是当你因为,一个问题修改你的程序的时候,你修改了程序,但原来没问题的模块。

麻省理工公开课 - 计算机科学及编程导论课程节选

But over here, there's a bit of a competition to see who can eat the strongest curry, I think quite often, so.

但是在这边，有一种竞赛是比谁能吃最辣的咖喱，我想这经常发生。

吃烤牛肉 - SpeakingMax英语口语达人

So the 3 s 1, or any of the other electrons that are in the outer-most shell, those are what we call our valence electrons, and those are where all the excitement happens.

它们是经常发生激发情况的,那也是我们所看到，我们称之为价电子，它们是经常发生激发情况的。

麻省理工公开课 - 化学原理课程节选