/ˌselɪˈbreɪʃn ||; ˌsɛləˈbreʃən/noun [C,U] the act or occasion of doing sth enjoyable because sth good has happened or because it is a special day 庆祝；庆典: Christmas celebrations 圣诞节庆祝活动I think this is an occasion for celebration! 看来这个时刻应该庆祝一下！