This eigenfunction is one of the fundamental concepts of quantum mechanics.

I have been to Cayman Brac.

She is famous as a mezzo-soprano singer.

He won a lot of money in blackjack.

It's a tradition to make gingerbread for Christmas.

He works at a racetrack.

The aurochs was a type of wild cattle that has gone extinct.

This situation is a volatile crisis.

I want to go to Lappeenranta, a city in Finland.

Once you're ready, let's go!