The umbilical vein plays a crucial role in transporting nutrients and oxygen to the fetus.

We will make the maximum effort for the success of this project.

The Daijōsai is an important Shinto ceremony in Japan.

He believes that he has the power of psychokinesis.

We celebrate Independence Day every year.

I plan to spend this year's Christmas with my family.

This secondary burial grave is believed to have been used by ancient people to honor the dead.

We are considering the resale of this product.

He visited the used bookstore to resell old books.

Single-celled organisms have the most basic form in the biological world.