尖刀的英文：
dagger; sharp knife

参考例句：

Spain want their cutting edge at its sharpest.
西班牙足协希望他们的锋线尖刀处在最锋利的状态。

He fears the lancet of my art as I fear that of his.The cold steelpen
他惧怕我的艺术尖刀，正如我害怕他的冷酷无情的钢笔。

Behind me is a memorial that symbolizes the Ranger daggers that were thrust into the top of these cliffs.
我身后是一座纪念碑，象征着突击队员像尖刀一样猛刺向峭壁的顶端。

dagger是什么意思：
n. 匕首，短剑

The dagger wept with blood.
匕首滴血。

The handle of the dagger was ash wood.
小刀的柄是梣木做的。

Beat the glowing metal into a dagger.
把灼热的金属锻造成匕首。

knife是什么意思：
n. 刀，匕首
v. 切；戮，刺

The killer stabbed him with a knife/stabbed a knife into him.
凶手用刀刺他.

The knife easily cut into the cake.
刀一下子就切进了蛋糕。

The intruder whipped out a knife.
闯进来的人突然掏出一把刀来。