leath·ery /ˈlɛðəri, ˈlɛðri/
  (a.)皮似的,皮質的,皮般強韌的
  Leath·er·y a. Resembling leather in appearance or consistency; tough; as, nothing but a leathery steak left to eat. “A leathery skin.”
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  leathery
       adj : resembling or made to resemble leather; tough but pliable
             [syn: coriaceous, leathered, leatherlike]