I have been in a long-term association with him.

Cytology is a branch of biology that studies the structure and function of cells.

The cytosol is the liquid part inside the cell, and many enzymatic reactions occur here.

He sent a reminder letter about the unpaid charges.

My hobby is cultivating tomatoes.

It looked as if the painting came to life again.

He apologized to me again and again.

The cell nucleus holds genetic information.

This product is a reimported one.

Dating with compensation is prohibited by law.