an amateur boxer who weighs no more than 179 poundsa wrestler who weighs 192-214 poundsa professional boxer who weighs between 169 and 175 pounds
同义词：cruiserweight
英汉双解大词典
light heavyweight(lightheavyweights)
1.
N-COUNT（可数名词）
A light heavyweight is a professional boxer who weighs between 160 and 175 pounds, or an amateur boxer who weighs between 165 and 179 pounds. (体重介于160与175磅的)轻重量级职业拳击手; (体重介于165与179磅)轻重量级业余拳击手