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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
随便看
head girl
headhunt
headhunter
heading
headlamp
headland
headless
headless chicken
headlight
headline
headline-grabbing
headliner
headlinese
reconnoiter
reconnoitre
reconsider
reconstitute
reconstruct
reconstruction
reconvene
record
record-breaking
recorded delivery
recorder
babu
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更新时间:2025/10/30 12:54:09