Now, unlike high school math or in algebra Z where you call things X and Y and Z, in programming, in computer science, you're actually dealing with humans where it's useful to have a variable name that's more descriptive than X and Y and Z.

不像高中数学或者代数中,称为X和Y和，在程序设计和计算机科学里，你实际上是在和人打交道,在这里有个描述性比xyz更强的,变量名称是很重要的。

哈佛公开课 - 计算机科学课程节选

On the evening before the Super Bowl a mix of celebrities (including home run king Barry Bonds and hip-hop impresario Jay-Z), high rollers and rabid fans crammed into the 12, 000-seat arena at Mandalay Bay in Las Vegas.

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He led the Supernova Cosmology Project beginning in 1988, and Prof Schmidt and Prof Riess began work in 1994 on a similar project known as the High-z Supernova Search Team.

BBC: Nobel physics prize honours accelerating Universe find

At CES, Sony unveiled the Xperia Z, its most recent foray into the high-end smartphone market, and a likely competitor to the iPhone.

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