欢宴的英文：
festival
festivity

参考例句：

Of, relating to, or appropriate for a feast or festival.
欢宴的，节日的欢宴的、有关节日的或适合于节日的

Hangouts are a whole new way to casually meet up with friends – it’s like Cheers for the web.
“视频群聊”是一种偶遇朋友的全新方法——它就像网络上的“欢宴”。

Smelling the aroma of a festive mealhe figured that someone from the office had called his wfe and tipped her off.
不仅如此，他还闻到了只有节日的欢宴才有的菜香，他不禁想到:一定是公司里的哪位同事打电话把他加薪的事向妻子告了密。

festival是什么意思：
n. 节日；庆祝；祭祀；欢宴
adj. 节日的；喜庆的；快乐的

The biggest festival in my country is the Spring Festival.
我国最大的节日是春节。

The carnival was immersed in a festival atmosphere.
嘉年华沉浸在喜庆的节日气氛中。

Spring festival is the chinese day.
春节是中国人的节日。

There is a poster about the pop festival.
有一张关于流行音乐节的海报。

They are gathering flowers for the festival.
他们正在采集节日用花。

festivity是什么意思：
n. 欢宴，欢庆

The biggest festival in my country is the Spring Festival.
我国最大的节日是春节。

The carnival was immersed in a festival atmosphere.
嘉年华沉浸在喜庆的节日气氛中。

Spring festival is the chinese day.
春节是中国人的节日。

There is a poster about the pop festival.
有一张关于流行音乐节的海报。

They are gathering flowers for the festival.
他们正在采集节日用花。