资料来源 : pyDict

白脱牛奶,酪浆

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Buttermilk \But"ter*milk`\, n.
   The milk that remains after the butter is separated from the
   cream.

资料来源 : WordNet®

buttermilk
     n : residue from making butter from sour raw milk; or
         pasteurized milk curdled by adding a culture