When you have a knife in hand, keep your eyes on the blade.

当你有一把刀在手，让您的眼睛上的刀锋。

youdao

Because as long as there is a knife in hand, his blood is hot.

因为手上只要有刀，他的血就是热的。

youdao

I got in the tub, knife in hand, and got ready to do what I felt I needed to do.

我手握尖刀走进浴缸，准备好了那样去做——我觉得有必要那样做。

youdao

He carried a gun in one hand and a knife in the other.

VOA: special.2009.12.31

So in the story Dudley is there, pen knife in hand, but instead of the prayer or before the prayer, he says "Parker, would you mind?"

故事里达德利手拿小刀，没有做祷告，或是在做祷告前，他说，派克，介意我们杀你吗“

耶鲁公开课 - 公正课程节选

He was holding a knife in his hand and he was wearing a mask.

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On the beach of an island in the Pacific, an island with black sand, hardened black lava, and nothing green growing but cactus, a British mariner with a knife in his hand was crouching before a giant tortoise.

NPR: Excerpt: 'Natives and Exotics'

Drayton was standing 2 feet away with the knife still in his hand, the boy said.

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