As quietly as I could I rummaged in the dark for my coat and pulled out my Swiss Army penknife. Its blunt two-inch blade felt about as lethal as an iced-lolly stick.

在黑暗中，我尽量悄无声息地从上衣口袋里拿出了瑞士军刀，两英寸的钝刀锋像一根冰棍那样难以致人于死地。

youdao

And a moist blade kept in the shower, harbouring old hair and dead skin, can lead to ingrown hairs and irritation when shaving because the blade becomes blunt.

并且放在浴室的潮湿刀片上藏匿着旧头发和死皮，使用剃刀的时候会导致毛发内生，引发刺激性反应，因为刀片变钝了。

youdao

Let not the sword-blade mock its handle for being blunt.

不要让刀锋讥笑它柄子的拙钝。

youdao

He still occasionally blacksmiths in a little tin shed on the Patagonia campus, and he showed me his latest project, a metal mussel knife that he's been beating into perfect shape sharp at the blade to pry open the shells, blunt at the handle to knock away the barnacles.

WSJ: Patagonia's Founder is America's Most Unlikely Business Guru