The serous membrane is a thin membrane that covers the inside of the body.

This flower is covered with a wax film, giving it a beautiful gloss.

This sunshade is useful for blocking the strong sunlight.

I take a walk in the park every day.

I go to the gym three times a day.

It's wonderful to see the sun rise.

When the sun rises, a new day begins.

Sunday is my day off.

What is the date today?

He keeps a Mongolian horse.