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.

He is studying the history of African Americans.

They have a variety of opinions, making it difficult to agree.

Three days ago, I went to Tokyo.

World War I was a large-scale war that lasted from 1914 to 1918.

He was anxious about starting a new business, but I encouraged him by saying, 'Even a journey of a thousand miles begins with a single step.'

Zoonosis is a disease that spreads from animals to humans, or vice versa.