Let x be the sum of a and b.

设x为a加b之和。

《牛津词典》

B We just compute: X equals a inverse B.

我们只用这样算：X等于A逆乘。

youdao

What's the cheapest way to get X packages from point a to point B?

将X个包裹从a点送到b点的最便宜方法是什么？

youdao

Y He's not returning A or B or temp, and definitely not X or Y; so he just did all of this work and yet that's it.

他不会返回A或B或temp，肯定也不是X或;,所以他刚才做了所有的工作，就是那样。

哈佛公开课 - 计算机科学课程节选

And you can very quickly take this feature to an extreme 10 and start putting X and Y and A and B and 10 and all your variables up top because it would seem to solve all of your problems and stop all of your thinking, but it's generally not a good thing.

你可能迅速地使这个特征成为一个极端,开始把X和Y和A和B和0,和所有的变量都放在最前，因为好像它可以,解决你的所有问题，并中止你的想法，但通常这不是一件好事情。

哈佛公开课 - 计算机科学课程节选

I'm doing a test there to say, x if the string x is less than the value of b, and x does not appear before b as strings, then I was going to do, oh, a couple of things, because they're at the same block level.

我正在做一个测试来看看，字符串,是不是小于b的值，而且x不在b之前作为字符串出现，如果是真的话我就要做，一系列的操作，因为他们是在同一个块等级上。

麻省理工公开课 - 计算机科学及编程导论课程节选

Oh, we almost forgot -- they've boosted out the keyboard in favor of a more useful D-pad and A, B, X, Y button formation -- which is, needless to say, awesome for playing awesome games.

ENGADGET: Seabright PC430 "micro PC" spurns keyboard, not coolness

You'll need to have a skin test for tuberculosis, a chest X-ray and a test for hepatitis B before taking infliximab.

CNN: Ulcerative colitis

The technology journalist Robert X Cringley has an article criticizing H1-B visas that I think is worth offering a rebuttal to.

FORBES: Misunderstanding the Benefits of High-Skilled Immigrants