Easter Triduum逾越节三日庆典
Holy Triduum神圣三日庆典
East Triduum逾越节三日庆典
Triduum of Italian Culture意大利文化三日祭
Easter r Triduum复活节庆典
N(名词) a period of three days for prayer before a feast (宴会前)为期三天的祈祷 [RC Church]