纪念日的英文：
day of commemoration
memorial day

参考例句：

A wish for your golden anniversary.
祝贺你们的金婚纪念日。

The couple gave a dinner party in celebration of their silver wedding anniversary.
这对夫妇设宴庆祝他们的银婚纪念日。

They are celebrating their golden wedding anniversary.
他们在庆祝他们的五十年金婚纪念日。

Many thanks for the beautiful roses for our golden anniversary!
再次感谢你为我们金婚纪念日送来的玫瑰花。

Glen and Lorraine just celebrated their diamond anniversary.
格伦和洛兰刚刚庆祝了他们的钻石婚纪念日。

A Fourth of July celebration includes a display of fireworks.
七月四日独立纪念日庆典包括燃放烟火。

I heard that Jay would sing songs on the sexcentenary.
我听说杰伊要在六百年纪念日上唱歌。

Forefathers' Day
祖先纪念日

When will you celebrate Independence Day?
独立纪念日是哪一天?

Where shall we go for our first anniversary?
上哪儿庆祝我们的一周年纪念日呢?

day是什么意思：
n. 一天；白昼，白天；工作日；时代，时期

Things go on day by day.
事情逐日进行着。

Day by day the situation is improving.
情况在一天天地好转。

Like this, day after day.
就这样，日复一日。

commemoration是什么意思：
n. 纪念；纪念仪式

A monument was built to commemorate the victory.
为了纪念胜利，建造了一座纪念碑。

A plaque commemorates the battle.
用一块饰板来纪念那次战役。

The UST quadricentennial celebration is a great commemoration.
圣托马斯大学四百周年纪念日是一个盛大的庆典。

memorial是什么意思：
n. 纪念物；纪念碑；纪念馆；纪念活动
adj. 纪念的；追悼的；记忆的

Old people always have long memories and not short memories.
老人家总是有长久不忘的好记性。

People came to the memorial to revere the memory of the great leader.
人们来到纪念馆崇敬地纪念这位伟大的领袖。

The memorial was built in memory of those who died in the war.
这纪念碑乃是为追念战亡的士兵而建立的。