blood·shot /-ˌʃɑt/
  (a.)充血的
  Blood·shot a.  Red and inflamed; suffused with blood, or having the vessels turgid with blood, as when the conjunctiva is inflamed or irritated.
     His eyes were bloodshot, . . . and his hair disheveled.   --Dickens.
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  bloodshot
       adj : (of an eye) reddened as a result of locally congested blood
             vessels; inflamed; "bloodshot eyes"