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 | Từ điển Oxford Advanced Learner 8th 
 
	
		|  Tweedledum and Tweedledee 
 
 Tweedle·dum and Tweedle·dee 7 BrE [ˌtwiːdlˈdʌm ən twiːdlˈdiː]  NAmE [ˌtwiːdlˈdʌm ən twiːdlˈdiː]   noun plural
 two people or things that are not different from each other
 
 Word Origin:
 [Tweedledum and Tweedledee] originally names applied to the composers Bononcini (1670–1747) and Handel, in a 1725 satire by John Byrom (1692–1763); they were later used for two identical characters in Lewis Carroll's novel  Through the Looking Glass.
 
 
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