Tra từ how long is a piece of string - Từ điển Oxford Advanced Learner 8th

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Từ điển Oxford Advanced Learner 8th

how long is a piece of string? how long is a piece of ˈstring? idiom (BrE, informal)used to say that there is no definite answer to a question •‘How long will it take?’ ‘How long's a piece of string?’ Main entry: ↑long_idiom