The amnion plays an important role in protecting the fetus.

The cell membrane plays an important role in maintaining the structure of the cell.

According to the law on specified alien species, the import of certain organisms is prohibited.

He bought new socks.

I need to take a laxative.

Various cultures exist under the sky, meaning in the whole world.

There is a small stain in the bottom right corner.

His lower jaw was strong, as if showing determination.

He tried to guide people unconsciously using subliminal messaging.

He loves dirty jokes and is always talking about such things.