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n.
伯父, 叔父, 姨丈, 援助者
n.
[俚]开当铺者

say(cry) uncle
[美口]讨饶,认认输
talk to sb. like a Dutch uncle
严厉地训诫(告诫)某人

He has left his watch with his uncle.
他把表典给当铺了

aunt