ducker
  潛水人,潛水鳥,養鴨者
  Douck·er n.  Zool. A grebe or diver; -- applied also to the golden-eye, pochard, scoter, and other ducks. [Written also ducker.] [Prov. Eng.]
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  Duck·er n.
  1. One who, or that which, ducks; a plunger; a diver.
  2. A cringing, servile person; a fawner.
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