n.（显示器上由调频引起的）钟形失真；雄天鹅( cob的名词复数 )；一种壮实的矮脚马；玉米棒子 英英释义： cob[ kɔbz ]n.nut of any of several trees of the genus Corylus同义词：hazelnutfilbertcobnutstocky short-legged harness horsewhite gull having a black back and wings同义词：black-backed gullgreat black-backed g