He is good at playing the black keys.

She played the white keys of the piano briskly.

My boyfriend gave me a gift.

Everyone was surprised by the news.

You must never show this secret key to anyone else.

He encrypted the message using a public key.

Let's exchange keys tomorrow.

This ancient ruin is engraved with the shape of a counterclockwise swastika.

Every morning, I check the lock opening before leaving the house.

I forgot my key and ended up not being able to get into my house.