Tom keeps a knife with a keen edge.

汤姆有一把锋利的小刀。

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For cutting and slicing, hold the knife with your thumb and index finger gripping the top of the blade, and wrap your other fingers around the handle.

切割或切片时用拇指和食指捏住刀刃上方，其他手指顺势握住刀柄。

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He thrust at me with a knife.

他拿刀向我刺来。

《牛津词典》

He would have to cut them with his knife.

VOA: special.2010.05.01

Just about every culture uses some sort of utensils to eat food with, a knife and a fork, chopsticks, a spoon.

几乎所有的文化都会使用某些餐具,刀叉,筷子,勺子

耶鲁公开课 - 心理学导论课程节选

And having seized this opportunity," that language, seized the occasion, seized this opportunity, "he had emplaced one morning in the piazza in two pieces, with a piece of wood and a bloody knife beside him.

而抓住这个机会“,这样的文字，抓住这个机遇，抓住这个机会，“一个早晨在广场上,他将两样东西安放在官员的旁边，一块木头,和一把沾血的刀子。

耶鲁公开课 - 政治哲学导论课程节选

Audetat also found a foldable knife with a 4-inch blade in Loughner's front pocket.

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He is charged with assaulting two officers, causing criminal damage to a police car and having a hammer and knife with intent to resist arrest.

BBC: Police 'had to draw guns' Belfast court is told

To prepare the beets, peel them and shave them on a mandoline, or slice them into very thin rounds using a knife with a fine, sharp blade.

WSJ: Sean Brock's Beet, Strawberry and Sorrel Salad | Slow Food Fast