Canvasback; redhead; pochard; etc..
帆布潜鸭;红头潜鸭;潜鸭等等。
canvasback:帆布潜鸭
canvas-boat 帆布艇 | canvasback 帆布潜鸭 | canvass for 游说
canvass for:游说
canvasback 帆布潜鸭 | canvass for 游说 | canvass 细查