Polychaete worms play an important role in the seabed ecosystem.

That man-child is still living in his parents' house.

He is called a 'kid's room uncle', and is alienated from society.

I reserved a single room.

We booked a double room.

I think all his stories are lies.

He was able to play the character he desired.

It's hard to see resources dwindling.

He underwent surgery for appendicitis.

Capillaries carry oxygen and nutrients to the cells of the body.