正在举行的世界摔跤锦标赛26日决出自由式三个级别的金牌。乌兹别克斯坦选手夺得55公斤级冠军，而两名俄罗斯选手分别获得60和66公斤级金牌。实力雄厚的美国选手在周一的比赛中表现不理想，空手而归。请看报道：

Russia's Buvaaysa Saitiev won his sixth world title Tuesday, capturing the gold medal in the 163-pound freestyle class at the wrestling world championships. Two Americans lost bouts² - Muhammed Lawal in the quarterfinals to Russia's Sazhid Sazhidov, and Daniel Cormier in the round of 16 in the 212-pound freestyle category.

文中的bout为"比赛，较量"的意思。如a wrestling bout¹ 指的是"一场摔跤比赛"。此外，bout还可表示"一回合，一次"，如a bout of fighting（打一回合）；in this bout（这一回合）。又如：His tremendous bouts of drinking had wrecked³ his health.（他猛烈的多次饮酒损害了他的健康。）