如果都不匹配那就说明有错误发生。

If nothing matches, you produce an error.

youdao

有时会有错误发生。

Mistakes can happen.

youdao

检查启动日志，并注意是否有错误发生。

Examine the startup log and watch for any errors.

youdao

Just a few small points. First of all, keep in mind that the bug is probably not where you think it is. Because if a bug were there, you'd have already found it.

第一，记住错误可能不是，发生在你认为的地方,因为如果那儿有一个错误,你可能已经找到了它。

麻省理工公开课 - 计算机科学及编程导论课程节选

I was expecting to compare x- and y- values, not radius and angle.

噢，发生了什么？,好吧有错误了。

麻省理工公开课 - 计算机科学及编程导论课程节选