sleep·walk·er /ˈslipˌwɔkɚ/
  夢遊病者
  sleep·walk·er /ˈslɪpˌwɔkɚ/ 名詞
  夢遊者
  Sleep·walk·er n. One who walks in his sleep; a somnambulist.
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  sleepwalker
       n : someone who walks about in their sleep [syn: somnambulist,
            noctambulist]