团圆饭的英文：
family reunion dinner
reunion dinner

参考例句：

All the members of the family gather to enjoy a reunion dinner.
全家人聚在一起吃团圆饭。

On New Year's Eve the whole family had a sumptuous feast of reunion.
除夕之夜,一家人吃了一顿丰盛的团圆饭。

Reunion dinner helps to deepen family ties while the exchange of gifts and greetings enhances relations between friends.
通过团圆饭，增进亲情，通过送礼拜年，增进友情。

"First, the elaborate multi-generation reunion dinner eaten leisurely at home was the norm."
首先，多代同堂的家庭成员，齐聚家中享受一顿丰盛的团圆饭，是每个人都会遵守的习惯。

family是什么意思：
n. 家，家庭；家庭成员；家世；子女

family friction
家庭的不和

There are often many nuclear families in one extended family.
在一个扩大的家庭中往往有多个核心家庭。

Which of you is the baby of the family?
你们当中谁是家中年龄最小的人？

reunion是什么意思：
n. 聚会；团聚；重聚

How joyous was that reunion!
久别重逢是多么令人欣喜啊！

We are having a class reunion.
我们要开同学会了。

We had a family reunion.
我们搞了一次家庭团聚。

dinner是什么意思：
n. 正餐；宴会；食物

Dinner was announced, and served.
已宣布开饭了，菜都上齐了。

Dinner was in two sittings.
晚餐有两个就餐时段。

He dressed for dinner.
他身着礼服赴宴会去了。