越过石头，两个身穿制服的女人在来回奔忙，勤勉地清扫着已然一尘不染的水泥地面。

And past it scuttle a pair of uniformed women, diligently sweeping already spotless slabs of concrete.

youdao

他比任何人都深地向法官鞠躬，在法庭上永远是一尘不染的整洁装束。

He bows to the judges pretty much as low as everybody else. Always a natty dresser, his standards in court never slip.

youdao

我只好来到客厅，看看有没有其它的事做，客厅的地很干净，沙发上很干净，茶几上也很干净，真可以称得上是一尘不染。

I had to come to the sitting room, see if there are other things, of the sitting room is very clean, the sofa is very clean, on tea table is also very clean, really is a spotless.

youdao