non·sex·u·al /(ˈ)nɑnˈsɛkʃ(ə)wəl/ 形容詞
  無性的
  Non·sex·u·al a. Having no distinction of sex; sexless; neuter.
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  nonsexual
       adj : not havning or involving sex; "an asexual spore"; "asexual
             reproduction" [syn: asexual] [ant: sexual]