剑桥词典 icebreaker noun [C] (ACTIVITY) a game or joke that makes people who do not know each other feel more relaxed together （彼此不认识的人见面时）活跃气氛的游戏（或笑话） icebreaker noun [C] (SHIP) a strong ship that can break a passage through ice 破冰船 返回 icebreaker