“金盆洗手”，汉语成语，指放弃以前长期从事的行业或某件事，可以翻译为“give up the old business”。也可以用“wash one's hands of something”表示，有“renounce, abandon, or distance oneself from someone or something”的意思。

例句：

让一个做坏事的人金盆洗手真的那么难吗？

Is it really so hard for a wrongdoer to wash his hands of illegal activities?

我在一年前就金盆洗手了。

I gave up the old business a year ago.