annunciation

annunciation
/əˌnʌnsɪˈeɪʃn; əˌnʌnsɪ`eʃən/ n
the Annunciation [sing]
(religion 宗) (festival held on 25 March to commemorate) the announcement to Mary that she was to be the mother of Christ 圣母领报（天使预告圣母马利亚, 她将生育耶稣）; 圣母领报节（3月25日）.

牛津英汉双解词典