ce·ru·le·an /səˈruliən/
  (a.)蔚藍的
  Ce·ru·le·an a.  Sky-colored; blue; azure.
     Blue, blue, as if that sky let fall
     A flower from its cerulean wall.   --Bryant.
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  cerulean
       adj : of a deep somewhat purplish blue color similar to that of a
             clear October sky; "October's bright blue weather"
             [syn: azure, sky-blue, bright blue]
       n : a light shade of blue [syn: azure, sapphire, lazuline,
            sky-blue]