英语错误的单词怎么写

　　Human error may have been a contributing factor.

　　人为的失误可能是一个起作用的因素。

　　We must allow for human error.

　　我们必须考虑到人为的失误。

　　It was largely a matter of trial and error.

　　这主要是个反复实验的问题。

　　He had made a humiliating tactical error and he had to go.

　　他犯了一个让他颜面尽失的战术错误，只得引咎辞职。