Remember, I am party to thy crime if I but listen.

记住，我要是听见你说的这些话，我就是你的同党。

youdao

I am not sure what to do then, I mean, should I cancel my graduation party?

我不知道该怎么办，我应该取消我的毕业派对吗？

youdao

I hate to be a party pooper, but I am really tired.

我真不想扫大家的兴，不过我真的太累了。

《柯林斯英汉双解大词典》

I am not going to be the only party poop here.

我才不要作唯一的扫把星。

哈佛公开课 - 幸福课课程节选

Mr. CUNNINGHAM: Well, I should say, Neal, in the interest of full disclosure, that I am a party to that case.

NPR: Invoking the State Secrets Privilege

And I am committed to uniting our party so we move forward stronger and more ready than ever to take back the White House this November.

CNN: Clinton will make 'no decisions tonight'

This is the Party I am proud to lead.

BBC: NEWS | UK | UK Politics | In full: Tony Blair's speech