This sword is single-edged and very sharp.

I was amazed at his extraordinary talent.

Please press this button in case of emergency.

It is a very beautiful view.

His eyes were sharp, as if nothing could be hidden.

His sharp gaze pierced me.

I am amazed at his keen observation skills.

He took the sharp weapon in his hand and advanced towards the enemy.

His knife is very sharp.

His words sometimes have a double-edged sword-like duality.