A sharp knife makes a clean cut.

快刀切得整齐。

《牛津词典》

You have to have a sharp knife.

你必须有一把锋利的刀。

youdao

Take a sharp knife and cut the salmon into thin slices.

用一把锋利的刀把三文鱼切成薄片。

youdao

The artist uses a fine sharp knife to cut through the metal.

VOA: special.2009.09.02

But a few years later, the high sharp voice of Hank Williams would cut like a knife through the music world.

VOA: special.2009.11.22

"And I just take this, a good sharp whittling knife like this and cut away everything that does not look like a guitar."

VOA: standard.2010.07.06

When slicing the radishes and onions, a mandolin or very sharp knife is the best tool for getting paper-thin rounds and semi-circles.

WSJ: Michael Schwartz's Striped Bass with Grapefruit and Pickled Radish

To slice, a mandoline is ideal but a sharp knife works too.

WSJ: Paul Kahan's Shaved Brussels Sprout Salad With Burrata | Slow Food Fast

Digital overload is swamping the current recommendation engines, making the sharp knife of human editorial a better filter than the blunt instrument of algorithmic recommendation.

FORBES: Humans Vs. Robots: Who's On Top?