keels
名词 keel:
the median ridge on the breastbone of birds that fly
同义词:keel
one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability
同义词:keel
动词 keel:
walk as if unable to control one's movements
同义词:stagger, reel, keel, lurch, swag, careen