If your files and database are still there, consider backing them up so that you can investigate them later at leisure, or restore to them if your cleaning attempt fails.

如果你的文件和数据库还在的话，还是把他们备份起来，这样你还可以在闲暇的时候调查一下，或许可以在你试着清除影响失败的时候用上。

youdao

This welding backing is used with all one-side processes. Especially for those which do not demand back bead cleaning.

本衬垫可用于各种单面焊接工艺的位置，特别适用于不一定要求封底焊道的场合。

youdao

With western backing and money, she appeared to be cleaning up the Serb part of Bosnia.

ECONOMIST: Bosnia