After three days without a winner, he X-rayed his sneaker out of boredom.

在三天没有赢家的情况下，他无聊地用X光照起了自己的运动鞋。

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The Ares I-X flight is the first of three planned test flights for the Ares I rocket.

本次试飞的“战神i - X”是“战神i”火箭的三个飞行试验计划中的第一个。

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Using technology developed at Brown University, researchers scan birds' bones and combine that with three-dimensional X-rays taken in flight.

利用布朗大学发明的技术，研究人员扫描了鸟儿的骨骼，同时还对鸟儿飞行时进行了三维X光扫描。

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The company took less than four years to produce three X-15s.

VOA: special.2010.07.07

XYZ I might as well do it as x, y, z because we are talking about something that is going in three space.

我最好设成,因为我们在讨论,三维的事物。

麻省理工公开课 - 固态化学导论课程节选

Meaning, why in the world do I have to tell the reader that I'm binding x to the value three? All right?

意思就是，我为什么要,告诉代码阅读者,要把x绑定到3这个值上呢？，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

He estimates, though, that he will need results from at least three more Brood X outbreaks to draw firm conclusions about cicadas' habitat preferences.

ECONOMIST: The 17-year cicadas are about to emerge in force

Forty-three percent of Gen X females (women between 30-44 years old) noted that they are being or have been mentored by women.

FORBES: Choose the Right Mentor to Advance Your Career

And after his performance at the Brits, the judges believe Wakefield has what it takes to make the top three at the international X-Games.

BBC: SPORT | Other Sport | Skiing | Wakefield wins half-pipe