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

"We called them Mr. X and Mr. Y, " she says.

FORBES: Magazine Article

At Google X, Mr. Thrun brought in University of Washington Prof.

WSJ: The Weekend Interview With Sebastian Thrun: What's Next for Silicon Valley?

"It's obvious that if Mr. X from ABC company is deciding pay questions about Mr. Y from DEF company and vice versa, a certain clubby cooperation can ensue, " says Jauhal.

FORBES: CEO Pay