cru·ral /ˈkrʊ(ə)rəl/ 形容詞
  腳的,腿的,腕鉤的
  Cru·ral a.  Anat. Of or pertaining to the thigh or leg, or to any of the parts called crura; as, the crural arteries; crural arch; crural canal; crural ring.
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  crural
       adj : of or relating the leg from the knee to the foot