n.雄天鹅；玉米的穗轴；壮实的矮脚马；小圆块v.捣碎；打碎；打臀部； 变形： 复数：cobs 英英释义： cob[ kɔb ]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 gull