When Mozilla made the transition from the Firefox 2.x series to the current 3.x series, they broke a record by netting over 8 million downloads in the first day it was available.

当Mozilla从Firefox 2 . x系列过渡到当前的3 . x系列，发布当天下载量就创造了超过8百万的记录。

youdao

Mr. X said that over the past two decades he's tried many times to learn to drink but failed.

X说，过去二十年里他很多次尝试学着喝酒，但还是不行。

youdao

NICE, however, say there is evidence that acupuncture may be more effective than expensive X-rays or injections, so patients who have been suffering for over six weeks should be given a choice.

但是NICE说有证据表明针灸比昂贵的X射线治疗或注射治疗更有效，遭受困扰超过6周的患者可以尝试一下这种治疗方法。

youdao

The X-15 flies high over the sandy wasteland of California's Mojave Desert.

VOA: special.2010.07.07

Mathematically complete problem is that you can find the function x of t by saying that the second derivative of the function is equal to -k over m times the function.

这个数学问题就是,你可以求出函数 x,只要令函数的二阶导数,等于 -k 除以 m 再乘以函数

耶鲁公开课 - 基础物理课程节选

Then the X-15 pushes over the top of its flight path.

VOA: special.2010.07.07

Somebody else is offering X-20 over there.

FORBES: Sometimes Markets Can Be Too Slow, Not Too Fast

Monikered as the not-so catchy SRS-BTX500 and BTX300, both can handle AAC and apt-X streaming over Bluetooth and stay charged for eight and six hours, respectively.

ENGADGET

There are two types one bounces electromagnetic waves off the body to create an image like this and the other uses backscatter technology to project low level X-ray beams over the body resulting in images like this.

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