Is his a shoe dirty or clean.

他的鞋是脏还是干净。

youdao

Is that mechanic dirty or clean?

那个机械师看上去是脏还是干净？

youdao

Home, no one will take broom tube it's dirty or clean.

家门口，没有谁会拿着扫把管它是脏还是干净。

youdao

In a Chinese farmers market, stooges handed over either clean or dirty notes, then asked for 500g of an extra vegetable.

FORBES: Dirty Cash, Dirty Minds: The Psychological Consequences Of Filthy Lucre

So does black market, or the supposedly clearly distinct clean and dirty money.

NPR: Tracking the World's Black Market: 'Illicit'

Or can a down and dirty approach sometimes help you clean up?

BBC: The bottom line on being messy