1 N-COUNT [usually singular] (无意中射入自家球门的)乌龙球 In sport, if someone scores an own goal, they accidentally score a goal for the team they are playing against. (无意中射入自家球门的)乌龙球 [British]
2 N-COUNT [usually singular] 伤害自身利益的行为 If a course of action that someone takes harms their own interests, you can refer to it as an own goal . 伤害自身利益的行为 [British]