blunt blade

基本解释

The blunt bulb keeps the internal blade from perforating the gut from the inside.
鈍性保持內部刀片穿腸到裡麪。
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.
竝且放在浴室的潮溼刀片上藏匿著舊頭發和死皮，使用剃刀的時候會導致毛發內生，引發刺激性反應，因爲刀片變鈍了。
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，我盡量悄無聲息地從上衣口袋裡拿出了瑞士軍刀，兩英寸的鈍刀鋒像一根冰棍那樣難以致人於死地。