Keel
01
the main structural beam running along the bottom of a ship's hull, providing stability and strength
语法信息
例子
The ship's keel was laid in dry dock, marking the start of construction.
02
the median ridge on the breastbone of birds that fly
03
a projection or ridge that suggests a keel
to keel
01
walk as if unable to control one's movements
语法信息
规则
现在时
keeling
一般过去时
keeled
过去分词
keeled
