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单词 lifeline
释义

WordReference Random House Learner's Dictionary of American English © 2024
life•line /ˈlaɪfˌlaɪn/USA pronunciation   n. [countable]
  1. Nautical, Naval Termsa line or rope for saving life, as one attached to a lifeboat.
  2. a route over which supplies must be sent to help an area or group of persons stay alive.

WordReference Random House Unabridged Dictionary of American English © 2024
life•line  (līflīn′),USA pronunciation n. 
  1. Nautical, Naval Termsa line, fired across a ship or boat, by means of which a hawser for a breeches buoy may be hauled aboard.
  2. Nautical, Naval Termsa line or rope for saving life, as one attached to a lifeboat.
  3. Nautical, Naval Termsany of various lines running above the decks, spars, etc., of a ship or boat to give sailors something to grasp when there is danger of falling or being washed away.
  4. Nautical, Naval Termsa wire safety rope supported by stanchions along the edge of the deck of a yacht.
  5. Nautical, Naval Termsthe line by which a diver is lowered and raised.
  6. any of several anchored lines used by swimmers for support.
  7. a route or means of transportation or communication for receiving or delivering food, medicine, or assistance:This road is the town's lifeline and must be kept open despite the snow.
  8. assistance at a critical time.
  • life + line1 1690–1700

Collins Concise English Dictionary © HarperCollins Publishers::
lifeline /ˈlaɪfˌlaɪn/ n
  1. a line thrown or fired aboard a vessel for hauling in a hawser for a breeches buoy
  2. a line by which a deep-sea diver is raised or lowered
  3. a vital line of access or communication
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