资料来源 : pyDict

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

Dress coat \Dress" coat`\
   A coat with skirts behind only, as distinct from the frock
   coat, of which the skirts surround the body. It is worn on
   occasions of ceremony. The dress coat of officers of the
   United States army is a full-skirted frock coat.