英语词汇“known unknown”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	known unknown
释义	known unknown noun DEFINITIONS1 1 something that you know you don’t know This case is a classic example of known and unknown unknowns, and I want your opinion on its management. Submitted from: United Kingdom on 09/07/2014 Open Dictionary - July2014 Noun☞known unknown
随便看	-backed back end back end of a bus backer backfield backfill backfire backfire effect back flip back formation back forty backgammon background backgrounder background music background noise background processing backhand backhanded backhander backhoe backing back in the day back issue backlash

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