齧齒

啮齿
nièchǐ
  1. (literary) to gnash one's teeth
  2. (literary, figurative) to be in extreme anger; to be fuming with rage with gritted teeth
  3. (zoology, attributive) relating to rodents
  4. relating to rodents
  5. to be in extreme anger; to be fuming with rage with gritted teeth
  6. to gnash one's teeth

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