His reflexes are very sharp.

I was amazed at his extraordinary talent.

Please press this button in case of emergency.

It is a very beautiful view.

I was surprised to see my reflection in the mirror.

The mirror reflects light.

His knife is very sharp.

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

I am amazed at his keen observation skills.

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