keelKK [kil] /kil/发音名词1龙骨、船底中梁The boat's keel scraped against the rocks in the shallow water.船的龙骨在浅水处刮到了岩石。2龙骨、中央隆脊生物Flying birds have a deep keel on the breastbone for muscle attachment.会飞的鸟类胸骨上有明显的龙骨,供肌肉附著。片语动词1倒下、昏倒口语He keeled over in the heat after standing for two hours.他在烈日下站了两个小时后就昏倒了。2翻覆、倾倒The small yacht keeled over in the sudden gust.那艘小游艇在突来的强风中翻覆了。片语1平稳、稳定After months of chaos, the company is finally on an even keel.经历数月的混乱后,公司终于稳定下来。用这个字练口说→相关片语keel over