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单词 facultatively
释义

WordReference Random House Unabridged Dictionary of American English © 2024
fac•ul•ta•tive  (fakəl tā′tiv),USA pronunciation adj. 
  1. conferring a faculty, privilege, permission, or the power of doing or not doing something:a facultative enactment.
  2. left to one's option or choice;
    optional:The last questions in the examination were facultative.
  3. that may or may not take place;
    that may or may not assume a specified character.
  4. Ecology[Biol.]having the capacity to live under more than one specific set of environmental conditions, as a plant that can lead either a parasitic or a nonparasitic life or a bacterium that can live with or without air (opposed to obligate).
  5. of or pertaining to the faculties.
  • Neo-Latin facultātīvus. See faculty, -ive
  • 1810–20
facul•ta′tive•ly, adv. 

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更新时间:2025/7/23 16:57:32