资料来源 : pyDict

天鹅喙的标记赛会

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

Swan-upping \Swan"-up`ping\, n.
   A yearly expedition on the Thames to take up young swans and
   mark them, as by Companies of Dyers and Vintners; -- called
   also {swan-hopping}. [Eng.] --Encyc. Brit.