three-pipe problem
词源说明
From the Sherlock Holmes stories of Arthur Conan Doyle, in which the detective would smoke one or more pipes while pondering the solution to a mystery.
释义
名词noun
- 1A particularly complex or challenging problem or puzzle.
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From the Sherlock Holmes stories of Arthur Conan Doyle, in which the detective would smoke one or more pipes while pondering the solution to a mystery.