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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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tune
tuneful
tune in
tuneless
tune out
tuner
tune up
tune-up
tungsten
tunic
tuning fork
tuning peg
tunisia
tunisian
tunnel
tunneled
tunneling
tunnel talks
tunnel vision
tunny
tup
tupik
tuple
tuppence
tuppenny
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更新时间:2026/2/5 2:31:47