I'm sorry I couldn't make your party last night.

很抱歉，昨晚没能参加你们的聚会。

《牛津词典》

Unfortunately your party clashes with a wedding I'm going to.

不巧得很，你的聚会和我要参加的婚礼在时间上有冲突。

《牛津词典》

Who else was at your party?

还有谁参加了你的派对？

youdao

And houses are decorated, and you see your friends and you bop from party to party."

VOA: special.2009.12.28

I don't know if I can come to your party.

我不知道我能不能参加你的派对。

I don't know 实战 - SpeakingMax英语口语达人

Now students have had an experience of working with you and having an experience of what it means to go to adult and be taken seriously. And that's what some of the students at your party were saying is that with Vice President Dickerson, if you go there, you feel heard.

现在学生们有了和您工作的经历,也体验到了成为成年人的意义,他们受到了认真的对待，就像,一些学生在您办的聚会上说的,你会觉得Dickerson副校长在倾听你。

普林斯顿公开课 - 人性课程节选

It is high time you took a grip of your party and led it properly.

BBC: Leaders scrap over PM's questions

What does it mean that your party has been turned aside in two straight elections now?

NPR: Sen. Ensign: Economy Hurt GOP Candidates

To this, all I can say is to make sure your party is as balanced as possible.

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