| 单词 | black swan |
| 释义 | black swannounan Australian swan, Cygnus atratus, having mostly black plumage and a red bill. an occurrence or phenomenon that comes as a surprise because it was not predicted or was hard to predict (often used attributively): a disastrous black-swan event that only appeared obvious in hindsight. Origin of black swan(def. 2) from the belief that all swans were white, before the first sighting of Australian black swans Words nearby black swanblackstrap molasses, Black Studies, Black Stump, black sucker, black swallowwort, black swan, blacktail, black-tailed deer, black tar heroin, black taxi, black tea Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for black swanblack swan nouna large Australian swan, Cygnus atratus, that has a black plumage and red bill a phenomenon that occurs even though it had been thought to be impossible Word Origin for black swansense 2 from the fact all swans were thought to be white until black swans were discovered in Australia Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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