Among polyandrous animals, there are species where one female mates with multiple males.

He is exactly in the state of 'A frog in a well does not know the vast ocean.'

He was swimming freely as if he was a fish playing in the pot.

She said 'to each his own', respecting the differences among people.

When he had a problem due to his own actions, he remembered the phrase 'chickens come home to roost'.

At the school sports festival, we did a three-legged race.

In this world, there are as many ways as there are people, each walking their own path.

The human immunodeficiency virus is the virus that causes AIDS.

I read the Letter to the Ephesians and gained a deep understanding of Christian teachings.

We are here to solve that problem.