Now as an aside, I'll admit this is a completely useless program, much like the first couple of ones we did because why would you write a program just to solve this?

说点题外话，我承认这是一个完全无用的程序，跟我们之前写的两个程序一样,我们为什么需要写个程序来解决这个数学运算呢？

youdao

Why get upset just because you got one bad grade?

何必因为一次成绩不好就想不开呢？

《牛津词典》

I was in a terrible state because nobody could understand why I had this illness.

我极度不安，因为没人能明白我为什么得了这种病。

《柯林斯英汉双解大词典》

Why,he asks? Because,he says, advertising is everywhere -- online,on television, even outside on buses and billboards.

VOA: special.2010.06.04

Now as an aside, I'll admit this is a completely useless program, much like the first couple of ones we did because why would you write a program just to solve this?

说点题外话，我承认这是一个完全无用的程序，跟我们之前写的两个程序一样,我们为什么需要写个程序来解决这个数学运算呢？

哈佛公开课 - 计算机科学课程节选

I think the reason why triathlon is not so, so big is just because it requires a lot of time.

我认为铁人三项运动之所以不够普及，
是因为它需要大量的时间。

对体育项目的热爱 - SpeakingMax英语口语达人

President Obama announced yesterday that he will voluntarily forfeit 5% of his salary because why should he be paid in full when the rest of the government underwent the slight trim of the sequester?

FORBES: Obama Unimpressively Returns $20,000 To His Employers

FreedomPop could also be disruptive to others such as Boingo Wireless, because why would people pay high fees for Internet access at the airport when they can get free (or nearly free) access through FreedomPop?

FORBES: FreedomPop Preps Open Wi-Fi, Launches Free Home Internet Challenging ISPs

"I guess we care because, why would you grant a monopoly to companies that are competitive and who say by their own admission that they're not failing...?" he asked.

CNN: Proposed satellite radio merger: Boon for consumers or monopoly?