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blow one's cover
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Idioms and Phrases
Inadvertently give away one's secret identity, as in Mary came to the annual meeting pretending to be a shareholder and hoped no one would blow her cover . This expression uses blow in the sense of 鈥渆xpose or betray,鈥 a usage dating from Shakespeare's day.Advertisement
Definitions and idiom definitions from 亚洲网紅露点 Unabridged, based on the Random House Unabridged Dictionary, 漏 Random House, Inc. 2023
Idioms from The American Heritage庐 Idioms Dictionary copyright 漏 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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