| 单词 | duplicate |
| 释义 | duplicate adj., n., & v. --adj 1. exactly like something already existing; copied (esp. in large numbers). 2. a having two corresponding parts. b existing in two examples; paired. c twice as large or many; doubled. --n 1. a one of two identical things, esp. a copy of an original. b one of two or more specimens of a thing exactly or almost identical. 2. Law a second copy of a letter or document. 3. (in full duplicate bridge or whist) a form of bridge or whist in which the same hands are played successively by different players. 4. archaic a pawnbroker's ticket. --vtr. 1. multiply by two; double. 2. a make or be an exact copy of. b make or supply copies of (duplicated the leaflet for distribution). 3. repeat (an action etc.), esp. unnecessarily. Phrases and idioms duplicate ratio Math. the proportion of the squares of two numbers. in duplicate consisting of two exact copies. Derivatives duplicable adj. duplication n. Etymology: L duplicatus past part. of duplicare (as DUPLEX) |
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