mid·dle·weight /ˈmɪdḷˌwet/
  體重中等者;中量級
  middleweight
       adj : of middle weight or of a middleweight category (155-160 lbs
             for prizefighters); "a middleweight boxer"
       n 1: an amateur boxer who weighs no more than 165 pounds
       2: a wrestler who weighs 172-192 pounds
       3: a professional boxer who weighs between 155 and 160 pounds