keel
/BrE kiːl 
, AmE kil /
noun
龙骨;
on an even keel literal figurative 平稳地
Phrasal verb
● keel over
intransitive verb
1 Nautical «ship» 倾覆
2 figurative informal «tree, mast, person» 倒下; «structure» 倒塌
keel
English → Chinese
Oxford English–Chinese