1. The twins exchanged their identities, but eventually they blew their cover.2. My covering for my brother's bad grades has been blown.3. Your lies have been exposed.4. Sooner or later people will find out about our affair.
 my cover is blown; be blown expose find out about something指身分的拆穿, 指謊言的揭穿. 很普遍, 指發現到某一件事實.
1. 他們雙胞胎互換身分, 最後被拆穿了.2. 我替弟弟隱瞞壞成績的事情穿幫了.3. 你的謊言已經被拆穿了.4. 遲早我們的外遇會被揭穿的.
How can you descnd into debauchery by getting drunk every day?