CoB 词形变化 CoBs 复数 释义与例句 n. 1. Initialism of centre of buoyancy. 物理 词汇关系 名词 同义词 5 hazelnut black-backed gull cob nut filbert great black-backed gull 上位词 3 swan seagull gull 整体词 2 hazel hazelnut 相关短语 cob nut 欧洲榛 cob nuts have a cob on has a cob on having a cob on had a cob on corn on the cob 玉米棒 sea cob Galineers Cob corns on the cob Welsh cob maize on the cob