Translation of "Reunion" in Chinese

I went to the reunion.

我將會出席會議。

He hesitated to take part in the reunion.

他毫不猶豫地參加了會議。

This means that eating dumplings on New Year's eve is a symbol of family reunion.

说明年夜饭的饺子是亲人团聚的象征。

- It is not necessary for us to attend the meeting.
- It is not necessary that we attend the reunion.
- It isn't necessary for us to attend the meeting.
- It's not necessary for us to attend the meeting.

我們沒有必要參加會議。