KNOW somethingshowing that you know all about something, even if it has not been discussed directly 会意的,心照不宣的
He gave us a knowing look.
他朝我们会意地看了一眼。
She exchanged a knowing smile with her mother.
她与母亲相互会心地一笑。
Examples from the Corpus
knowing• Her questions and knowing looks unnerved him, almost as if she had figured him out.• I saw him give her a knowingsmile as she left the room.• "I heard what you were saying, " Maya said with a knowing smile.
knowing smile• Glancing surreptitiously around, she glimpsedknowing smiles and heads drawn close as people whispered.• Gloriously romantic yet giddily hilarious, this movie gives you a ruefully knowing smile as it sides with the wiseheart.• When Gwen gave a rather knowing smile, she blushedscarlet.• You would have been forgiven for a knowing smile then, but now acidrain is no laughing matter.• Nate Cocello allowed a knowing smile to cross his face at what he knew would be the naturalreactions of line managers.• Harry, for his part, exchanged a knowing smile with Papaioannou, then went on in the direction of the village.