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Mar 5, 2017 - Idiom of the day: The nuts and bolts. Meaning: The basic, practical details of a job or other activity. Example: I want you to learn how to ... ... <看更多>

Meaning "crazy person, crank" is attested from 1903 (British form nutter ... Re the history of the nut and bolt, the screw thread is nothing ... ... <看更多>