他把简单的组装工作搞得一团糟，因为零件都装错了。

He ___bungled the simple assembly job by putting the parts together the wrong way.

团队因准备不足而搞砸了这次重要演示。

The team ___bungled the important presentation due to poor preparation.

他把重要的报告搞砸了，因为忘记保存文件。

He ___bungled the important report by forgetting to save the file.