pum·per·nick·el /ˈpʌmpɚ/
  粗製□麥麵包
  Pump·er·nick·el n.  A sort of bread, made of unbolted rye, which forms the chief food of the Westphalian peasants. It is acid but nourishing.
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  pumpernickel
       n : bread made of coarse rye flour [syn: black bread]