1周年英语First Anniv，全拼First Anniversary。
例句：
1、但是这周你在庆祝它的一周年纪念日。
but this week you're celebrating its first anniversary.
2、今年7月下旬，在庆祝2022年冬奥会申办成功一周年的活动中，北京启动了全球征集会徽设计方案的活动。
Beijing launched a worldwide campaign to seek designs for the emblems at an event held to celebrate the first anniversary of the successful bid for the 2022 Olympic Games in late July.
3、上周五是阿里巴巴首次公开招股（IPO）一周年纪念日。
The first anniversary of its initial public offering was on Friday.
4、周三是奥巴马总统执政一周年纪念日。
Wednesday marked Barack Obama's first anniversary in office.
5、明天将伯南克就职一周年纪念日，从市场传来的消息较为积极。
Tomorrow marks the first anniversary of his chairmanship and the news from the markets is good.
