to say or do something that makes people feel more relaxed, especially at the beginning of a meeting, party, etc.(尤指聚会等开始时,用言语或行动)打破隔阂;打头说话see alsoicebreaker(2)
Jim organized a few party games to break the ice when people first arrived.当人们第一次到达时,吉姆组织了几次聚会游戏来打破僵局。