I've gone over everything in my head time and time again and I can't shake the feeling that, somehow, everything got mixed up.

我一次又一次地检查脑海中的每件事，就是无法摆脱那种，怎么说呢，所有东西混杂到一起的感觉。

youdao

Over the preceding year or so, I had randomly found a few bugs in the code that made me shake my head and go “how did *this* happen?!”.

在差不多一年前，我偶然发现了代码里的一些错误，让我直摇头说“怎么会发生这种事？！”

youdao

Whenever I looked over at Keith, he would gleam his teeth at me and shake his head all wry, as if to say, “Odd job of work, isn’t it?”

每次我一看基斯，他就亮出大牙，向我摇头苦笑，仿佛在说：“这差事够奇怪的，是不是？”

youdao

He would actually place my fingers on the strings where they were supposed to go, you know, and just he'd sit there and, without words, you know, play the note and look at me, shake his head, play it again, over and over--was very patient.

NPR: Remembering Army Pfc. Kenneth Zeigler