crus /ˈkrus, ˈkrʌs/
  腳,小腿
  crus /ˈkrus, ˈkrəs/ 名詞
  (複crura)腳,腿,脛腳肢,腕鉤
  Crus n.; pl. Crura   Anat. (a) That part of the hind limb between the femur, or thigh, and the ankle, or tarsus; the shank. (b) Often applied, especially in the plural, to parts which are supposed to resemble a pair of legs; as, the crura of the diaphragm, a pair of muscles attached to it; crura cerebri, two bundles of nerve fibers in the base of the brain, connecting the medulla and the forebrain.
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  crus
       n : the leg from the knee to foot
       [also: crura (pl)]