Not only do they have a sharpened peg of a tooth but their teeth narrow down to a razor sharp edge at the back making the tigers bite much more lethal.

它们不仅仅有锋利的三角状牙齿，而且背面向下逐渐收缩成剃刀一样锋利，这使得老虎的咬更加致命。

youdao

While I think that Blizzard sharpened the genre to a fine edge without quite bringing it to a new level, I think Battlegrounds truly has the potential to raise people's expectations.

我认为暴雪将这一切提高到一个新的层次。我认为战场系统的潜力超过人们的预期。

youdao

When a pencil is sharpened, the pencil needs to be contacted with the cutting edge and broached back and forth along the guiding groove.

削笔时只要将笔贴在刀刃上，沿导向槽往复拉削即可。

youdao

Typically consisting of a long, narrow, sharpened edge attached to a handle, chisels are distinguished from knives and axes in that they're driven by a sharp blow from a hammer or mallet.

FORBES: Magazine Article

This sharpened the edge of the answers.

ECONOMIST: After the debates

It begins with his near-fatal car crash in 1999 on a fishing trip in the outback of Australia, an event that crippled his walking for the rest of his life, and then flashes back to his upbringing in a prominent Sydney family, which educated him at Jesuit schools and sharpened his antiauthoritarian edge.

WSJ: Robert Hughes | The Most Feared Art Critic of His Time? | By Richard B. Woodward