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单词 alimentary canal
释义

WordReference Random House Unabridged Dictionary of American English © 2024
alimentary canal, 
  1. [Anat., Zool.]a tubular passage functioning in the digestion and absorption of food and the elimination of food residue, beginning at the mouth and terminating at the anus.
  • 1755–65

Collins Concise English Dictionary © HarperCollins Publishers::
alimentary canal, alimentary tract n
  1. the tubular passage extending from the mouth to the anus, through which food is passed and digested
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