a dime a dozen

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. So common as to be practically or almost worthless. Australia,US,idiomatic
    — Near-synonyms: not worth a dime; see also Thesaurus:worthless
  2. Used other than figuratively or idiomatically: see a, dime, a, dozen: sold at twelve (12) units per dime (10¢).

词源

With literal origins; now usually in the figuratively extended sense.
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