错误的单词怎么写

　　It was largely a matter of trial and error.

　　这主要是个反复实验的问题。

　　The bug was caused by an error in the script.

　　这个故障是由脚本程序出错造成的。

　　The margin of error was plus or minus three percentage points.

　　误差幅度在三个百分点左右。

　　The accident was caused by pilot error.

　　这场事故是飞行员的失误造成的。