We'll call him Mr. X.

我们会称他为X先生。

youdao

Mr. X hated the dead person and wanted to kill him, but had no chance.

X 先生恨这个死人，想杀了他，但是没有机会。

youdao

The boss is conveying a negative impression of Mr. X without actually saying negative about him.

老板给 X 先生留下了不好的印象，却没有说他不好。

youdao

Well, we want to know, after 2041, let's say 2045, is there somebody who's a person, call him Mr. X.

我们想知道，2041年后，假设是2045年吧，会不会存在一个人，我们称他为X先生。

耶鲁公开课 - 死亡课程节选

He still incurred -C because he ran and he also has a cost of |x-y| because he doesn't like Mr. Y winning.

他同样有-C的收益因为他参加了竞选,且他还有|x-y|的成本,因为他不喜欢Y先生获胜

耶鲁公开课 - 博弈论课程节选

I'm not asking Is this person stage Mr. X the same person stage as SK 2007.

我不是在问,这个阶段的X先生,和2007年的我是不是同一阶段。

耶鲁公开课 - 死亡课程节选

They crash empires and are gone, and the people who come after wonder what all the fuss was, about Mr X or Mrs Y.

BBC: How the fate of Europe could be decided 'within hours'

Mr Hurst said Mr X, who was secretly filmed by the former intelligence officer, told him he had been targeted because of his work in Northern Ireland.

BBC: Christopher Jefferies

For them, the political reality is not one of giving voters the freedom to choose President X, but of setting Mr X free to ask, push, bribe or bludgeon them into choosing him.

ECONOMIST: Two terms and you��re out