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单词
known unknown
释义
known unknown
noun
DEFINITIONS
1
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
Noun
☞known unknown
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car wash
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cascading style sheets
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casein
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更新时间:2025/11/2 19:54:09