Please convert this number into meters.

This park is always empty.

I converted dollars into yen.

My grandmother has been suffering from arthritis for many years.

He is suffering from chancre.

Casein is a protein that is abundant in dairy products.

I like to eat bread with cheese on it.

The Mariana Trench is the deepest part of the earth.

Chrysophyta perform photosynthesis underwater.

Chrysophyta are living in this pond.