DICT.TW Dictionary Taiwan

 mas·tiff /ˈmæstəf/
 大型猛犬之一種

 Mas·tiff n.; pl. Mastiffs [Mastives is irregular and unusual.]  Zool. A breed of large dogs noted for strength and courage.  There are various strains, differing in form and color, and characteristic of different countries.
 Mastiff bat Zool. , any bat of the genus Molossus; so called because the face somewhat resembles that of a mastiff.
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 mastiff
      n : an old breed of powerful deep-chested smooth-coated dog used
          chiefly as a watchdog and guard dog