The fork is held in your right hand and the knife in your left.

右手拿叉，左手拿刀。

youdao

His hand went limp and the knife clattered to the ground.

他的手一软，刀子当啷一声掉到地上。

《牛津词典》

He put the fatal knife in Potter's open right hand, and sat down on the dismantled coffin.

他把那把致命的刀子放在波特张开的右手里，在掀开的棺材上坐了下来。

youdao

But the deeper his knife went, the deeper the small hand sank until it had caught hold of Georgiana's heart.

VOA: special.2009.09.26

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

VOA: special.2009.12.31

He said Aamir's father, who desperately tried to fight off his sons killers, said he had grabbed the attacker's left hand - the hand the knife was in.

BBC: Jason Richards and Ben Hope - artist impression

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

NPR: Flavor Flav Felony Case Headed For Trial In Vegas

Guests are given a tour, then outfitted in Barbour jackets and left-hand gloves. (In the old days, the right hand was your "knife hand, " and thus left uncovered.) And off they're sent to a big, grassy knoll fringed by woodland, to hunt for a stuffed rabbit.

WSJ: Learn Ancient Sports Around the World