The idiom "tricks of the trade" likely originated from the idea that in various professions or industries, there are specific techniques, methods, or strategies that experienced practitioners use to excel in their work. These "tricks" or tips are often not found in textbooks or formal training but are instead passed down through generations of practitioners. This phrase is used to refer to the specialized knowledge, techniques, or strategies that are known and used by experts or experienced individuals in a particular field or industry.

英語での「tricks of the trade」の定義と意味

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