bed·sore /ˈbɛdˌsor, ˌsɔr/
  褥瘡
  bed·sore /ˈbɛdˌso(ə)r, ˌsɔ(ə)r/ 名詞
  褥瘡
  Bed·sore n. Med. A sore on the back or hips caused by lying for a long time in bed.
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  bedsore
       n : a chronic ulcer of the skin caused by prolonged pressure on
           it (as in bedridden patients) [syn: pressure sore, decubitus
           ulcer]