📚 WordMate 词典

n. 龙骨, 平底船
vt. 装以龙骨, 使倾覆
vi. 倾覆

n. a projection or ridge that suggests a keel
n. the median ridge on the breastbone of birds that fly
n. one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability

过去式: keeled 现在分词: keeling 复数: keels 第三人称单数: keels 过去分词: keeled