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来源:@Budha https://www.pdawiki.com/forum/space-uid-242609.html
The American Heritage Dictionary of Indo-European Roots, Third Edition
by Calvert Watkins
The American Heritage Dictionary of Indo-European Roots, Third Edition traces over 13,000 words representing nearly 1,350 basic roots to their origins in Proto-Indo-European, the prehistoric ancestor of English. It is an indispensable resource for anyone interested in the history of English and its place within the Indo-European language family.
ISBN: 9780547549446
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