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单词 nervous system
释义

WordReference Random House Learner's Dictionary of American English © 2024
ˈnerv•ous ˌsys•tem,  n. [countable]
  1. Anatomythe system of nerve cells, chemicals, and structures that work to receive messages from outside the body, and in sending messages that result in movement and other responses, including the brain, spinal cord, and nerves.

WordReference Random House Unabridged Dictionary of American English © 2024
nervous sys′tem, [Anat., Zool.]
  1. Zoology, Anatomythe system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia.
  2. Anatomy, Zoologya particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous system. 
  • 1730–40

Collins Concise English Dictionary © HarperCollins Publishers::
nervous system n
  1. the sensory and control apparatus of all multicellular animals above the level of sponges, consisting of a network of nerve cells
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