(as) clean as a whistle

US /əz ˈkliːn əz ə ˈhwɪsl/
UK /əz ˈkliːn əz ə ˈhwɪsl/
"(as) clean as a whistle" picture
1.

一尘不染, 非常干净

completely clean or spotless

:
After she scrubbed the kitchen, it was as clean as a whistle.
她擦洗完厨房后,厨房一尘不染
The car came back from the car wash as clean as a whistle.
汽车从洗车店回来时一尘不染
2.

顺利地, 毫无问题地

without any problems or difficulties; smoothly

:
The whole operation went as clean as a whistle.
整个行动顺利进行
He got through the interview as clean as a whistle, answering every question perfectly.
顺利地通过了面试,完美地回答了每一个问题。
3.

清白无瑕, 合法正直

without any illegal or immoral actions; legally and honestly

:
The politician's record was found to be as clean as a whistle after the investigation.
调查后发现,这位政治家的记录清白无瑕
He swore his business dealings were as clean as a whistle.
他发誓他的商业交易清白无瑕