That last stupid bungle of his is the end.

他那最后一次愚蠢的错误使我再也无法容忍了。

He is a fool who bungles constantly.

他真个笨蛋, 做起事来总笨手笨脚的。

If you bungle a job, you must do it again!

要一件事搞糟了,得重做！

You can’t do a thing without bungling it.

做事总笨手笨脚。

John bungled the job.

约翰事情搞糟了。