1. 周年纪念（日）
An anniversary is a date which is remembered or celebrated because a special event happened on that date in a previous year.
e.g. ...the one hundredth anniversary of the birth of Ho Chi Minh.
胡志明诞辰一百周年纪念
名词周年纪念日
形容词周年的; 周年纪念的; 年年的; 每年的