試題詳解

81. unabridged dictionaries contain as many as 500,000 entries and provide detailed definitions and extensive word histories （etymologies）. These dictionaries, possibly in several volumes and mostly found in libraries, are excellent sources for scholarly inquiries. Unabridged dictionaries include the Oxford
(E)nglish
(D)ictionary and the Random House
(D)ictionary of the
(E)nglish Language.