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Từ điển Oxford Learners Wordfinder Dictionary 
	
		  dark ages   
  the ˈdark ages  [dark ages] BrE NAmE   noun plural  1. the Dark Agesthe period of European history between the end of the Roman Empire and the 10th century AD  2. (often humorous)a period of history or a time when sth was not developed or modern   •Back in the dark ages of computing, in about 1980, they started a software company.    •You're living in the dark ages, Mum! 
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