under the hood

介词短语
中文释义

英文释义

介词短语
  1. Beneath the surface; in the internal workings. figuratively
    — Internet search engines are easy to use, but there's a lot going on under the hood.
  2. Used other than figuratively or idiomatically: see under, the, hood: beneath the bonnet (of a car or truck).
    — She's got whitewall tires and suicide doors / Under the hood, got a four-fifty-four / Well, they don't make 'em like that no more / Not since nineteen seventy-four / Big cars / Yeah, I like big cars

词源

The figurative sense is extended from the literal sense via metaphor.
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