in·fer·tile /(ˈ)ɪnˈfɚ/
  (a.)不肥沃的,不毛的,不結果實的
  in·fer·tile /(ˈ)ɪnˈfɝtḷ/ 形容詞
  In·fer·tile a.  Not fertile; not productive; barren; sterile; unable to propagate its kind; as, an infertile soil; an infertile hybrid; -- of living things and of soil or land.
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  infertile
       adj : incapable of reproducing; "an infertile couple" [syn: sterile,
              unfertile] [ant: fertile]