be as pure as the driven snow
US /bi æz pjʊr æz ðə ˈdrɪvən snoʊ/
UK /bi æz pjʊr æz ðə ˈdrɪvən snoʊ/

1.
像白雪一樣純潔, 純潔無瑕
to be morally pure and innocent
:
•
She claims to be as pure as the driven snow, but I've heard stories.
她聲稱像白雪一樣純潔,但我聽說過一些故事。
•
Despite his rough exterior, his intentions were always as pure as the driven snow.
儘管他外表粗獷,但他的意圖始終像白雪一樣純潔。