| 释义 | 
		Definition of canvasback in English: canvasbacknounˈkanvəsbakˈkænvəsˌbæk A North American diving duck with a long, sloping black bill, related to the common pochard. (北美的)帆背潜鸭 Aythya valisineria, family Anatidae Example sentencesExamples -  From time to time, the pond has hosted the locally rare redhead, a member of the group to which scaup, the canvasback and ring-necked duck belong.
 -  Two ducks common in the winter marsh - the canvasback and greater scaup - are now up in the Yukon and the Seward Peninsula.
 -  The ponds also attract black ducks, canvasbacks, American wigeons, lesser and greater scaups, green- and blue-winged teal, cinnamon teal, and herons.
 -  And the hundreds of thousands of migrating waterfowl that stop there every winter include mallards, canvasback ducks, blue-winged and green-winged teals, and wood ducks.
 -  Of the 35,000 canvasbacks that winter annually on San Francisco Bay, about 10 percent spend time in Viansa Wetlands.
 
 
 OriginLate 16th century: so named because of the white back of the male.    Definition of canvasback in US English: canvasbacknounˈkanvəsˌbakˈkænvəsˌbæk A North American diving duck with a long, sloping black bill, related (and with similar coloring) to the pochard, common in Eurasia. (北美的)帆背潜鸭 Aythya valisineria, family Anatidae Example sentencesExamples -  And the hundreds of thousands of migrating waterfowl that stop there every winter include mallards, canvasback ducks, blue-winged and green-winged teals, and wood ducks.
 -  From time to time, the pond has hosted the locally rare redhead, a member of the group to which scaup, the canvasback and ring-necked duck belong.
 -  Of the 35,000 canvasbacks that winter annually on San Francisco Bay, about 10 percent spend time in Viansa Wetlands.
 -  Two ducks common in the winter marsh - the canvasback and greater scaup - are now up in the Yukon and the Seward Peninsula.
 -  The ponds also attract black ducks, canvasbacks, American wigeons, lesser and greater scaups, green- and blue-winged teal, cinnamon teal, and herons.
 
 
 OriginLate 16th century: so named because of the white back of the male.     |