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单词 keel over
释义

Collins Concise English Dictionary © HarperCollins Publishers::
keel over vb (adverb)
  1. to turn upside down; capsize
  2. (intransitive) informal to collapse suddenly
WordReference Random House Learner's Dictionary of American English © 2024
keel1 /kil/USA pronunciation   n. [countable]
  1. Nautical, Naval Termsthe base at the bottom of the hull of a boat, usually a long metal or wooden bar, that extends from the back to the front and from which the sides are built.

v. 
  1. keel over, [no object]
    • to capsize or overturn:The boat keeled over in the hurricane.
    • to fall in or as if in a faint:to keel over from the heat.
Idioms
  1. Idioms on an even keel, in a steady or stable state:to keep things on an even keel.


WordReference Random House Unabridged Dictionary of American English © 2024
keel1  (kēl),USA pronunciation n. 
  1. Nautical, Naval Termsa central fore-and-aft structural member in the bottom of a hull, extending from the stem to the sternpost and having the floors or frames attached to it, usually at right angles: sometimes projecting from the bottom of the hull to provide stability.
  2. [Literary.]a ship or boat.
  3. a part corresponding to a ship's keel in some other structure, as in a dirigible balloon.
  4. Astronomy(cap.) the constellation Carina.
  5. Botany, Zoologya longitudinal ridge, as on a leaf or bone;
    a carina.
  6. ArchitectureAlso called brace molding. a projecting molding the profile of which consists of two ogees symmetrically disposed about an arris or fillet.
  7. Idioms on an even keel, in a state of balance;
    steady;
    steadily:The affairs of state are seldom on an even keel for long.

v.t., v.i. 
  1. to turn or upset so as to bring the wrong side or part uppermost.
  2. keel over:
    • to capsize or overturn.
    • to fall as in a faint:Several cadets keeled over from the heat during the parade.
  • Old Norse kjǫlr; cognate with Old English cēol keel, ship; see keel2
  • 1325–75; 1895–1900 for def. 9; Middle English kele
keeled, adj. 

keel2  (kēl),USA pronunciation n. [Brit. Dial.]
  1. British Terms, Naval Termskeelboat.
  2. British Termsa keelboat load of coal;
    the amount of coal carried by one keelboat.
  3. British Terms, Weights and Measuresa measure of coal equivalent to 21 long tons and 4 hundredweight (21.5 metric tons).
  • Middle Dutch kiel ship; cognate with Old English cēol ship, German kiel ship (obsolete), keel1
  • late Middle English kele 1375–1425

keel3  (kēl),USA pronunciation v.t. [Brit. Dial.]
  1. British Termsto cool, esp. by stirring.
  • bef. 900; Middle English kelen, Old English cēlan to be cool; akin to cool

keel4  (kēl),USA pronunciation n. 
  1. a red ocher stain used for marking sheep, lumber, etc.;
    ruddle.
  • English)
  • 1475–85; earlier keyle (north and Scots dialect, dialectal); compare Scots Gaelic cìl (itself perh.

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