seal·skin /ˈsi(ə)lˌskɪn/
  海豹皮
  Seal·skin n. The skin of a seal; the pelt of a seal prepared for use, esp. of the fur seal; also, a garment made of this material.
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  sealskin
       n 1: the pelt or fur (especially the underfur) of a seal; "a coat
            of seal" [syn: seal]
       2: a garment (as a jacket or coat or robe) made of sealskin