The wedding was a great occasion.

这婚礼可是一大盛典。

《牛津词典》

Let us rejoice together on this great occasion!

在这样一个盛大的节日里，让我们共同欢庆吧！

youdao

The opening of a new school is always a great occasion.

一所新学校的落成启用永远都是一件大事。

youdao

It wasn't much fun but Tannadice was full and it was a great occasion.

BBC: Scottish Premier League clubs favour expansion plans

It's going to be a great occasion and we're going to enjoy our time there and can get another win.

BBC: Irish can overcome Tigers - Hewat

"It's a fantastic party -- a great occasion for locals, expats and tourists to get together, and I'm definitely coming again, " says Robyn Matravers, a visitor from Toronto.

CNN: Fish fry bridges tourist-local gap on Turks and Caicos