as clean as a whistle
成語所屬單字clean
as clean as a whistle — 慣用語
1. Extremely clean, with no dirt or marks.
1.慣用語
釋義
非常乾淨
Extremely clean, with no dirt or marks.
例句
After scrubbing for an hour, the kitchen floor was as clean as a whistle.
Did you get the windows as clean as a whistle for the inspection?