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What does BLUE mean?
"out of the blue＂
In this case,what does BLUE mean?
Nov 6, 2018 6:57 AM
Answers · 4
2
The phrase comes from blue sky. It would be surprising to see rain come out of a blue sky, hence something that comes 'out of the blue' is a surprise.
November 6, 2018
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November 6, 2018
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