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单词 facultative
释义

facultative

听听怎么读
英 ['f?k?lt?t?v]
美 ['f?k?l?te?t?v]
是什么意思
  • adj.

    特许的;兼性的;

  • 英英释义

    facultative[ 'f?k?lt?tiv ]

    • adj.
      • of or relating to the mental faculties
      • able to exist under more than one set of conditions

        "a facultative parasite can exist as a parasite or a saprophyte"

      • granting a privilege or permission or power to do or not do something

        "a facultative enactment"

      • not compulsory

        "facultative courses in the sciences"

    学习怎么用

    双语例句

    1. The last questions in the examination were facultative.
      最後的那些考题答兴不答可听自便。

    权威例句

    Facultative bacterial symbionts in aphids confer resistance to parasitic wasps
    Facultative symbionts in aphids and the horizontal transfer of ecologically important traits.
    Host Plant Specialization Governed by Facultative Symbiont
    Dark septate endophytes: a review of facultative biotrophic root-colonizing fungi.
    Alcaligenes eutrophus CH34 is a facultative chemolithotroph with plasmid-bound resistance to heavy metals.
    Escalated aggressive behaviour and facultative parental care in the nest building gladiator frog, Hyla faber
    In vitro susceptibilities of aerobic and facultative Gram-negative bacilli isolated from patients with intra-abdominal infections wo...
    In vitro susceptibilities of aerobic and facultative Gram-negative bacilli isolated from patients with intra-abdominal infections in...
    Host-based divergence in populations of the pea aphid: insights from nuclear markers and the prevalence of facultative symbionts.
    Ecological Aspects of Amphibian Metamorphosis: Nonnormal distributions of competitive ability reflect selection for facultative meta...
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