Can't we say "It's not brain surgery" instead?

我们能不能用“有什么啊，又不是脑颅手术！”

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Even if you are willing to ignore the legal issues, this process, while not brain surgery, takes more skill than the average user possesses.

即使不考虑法律问题，在Windows电脑上安装苹果操作系统虽然不像脑外科手术那么复杂，但需要的技巧也比普通用户所掌握的更多。

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She could suffer irreversible brain damage if she is not treated within seven days.

如果在7天内得不到治疗，她的大脑有可能会受到不可恢复的损害。

《柯林斯英汉双解大词典》

She showed that a brain injury did not mean the end of life or the end of joy.

VOA: special.2011.02.27

They're producing electrical signals in the brain they're not recording from the brain, but it's not that big of a difference.

它们只能向大脑发出信号,而不能记录反馈大脑的信号,但是这两者技术要求差别不大

耶鲁公开课 - 生物医学工程探索课程节选

It means,when my brain gets split, my soul is going to end up in Lefty or in Righty,but not in both.

这个意思是，我的大脑被一分为二后，灵魂将只能进入小左或小右其中一个。

耶鲁公开课 - 死亡课程节选

The fMRI results suggest he is not brain dead, because areas above the brain stem are showing activity.

CNN: Sharon brain results not proof he'll wake up

If value, not brain power, is the engine that drives markets, then the market's inherent nature militates against elite control.

FORBES: Magazine Article

"This was a little bit different because it's on the inferior orbit, so what's underneath me is sinus, not brain, " Polonski said of Luetscher's case.

CNN: Man's eye saved after impalement