What he did was an irretrievable mistake.

He tidied up the room quickly.

He likes to take a walk in the park at dusk.

The Calopteryx cornelia is a species endemic to Japan, and it has beautiful wings.

It's a beautiful night with the moon.

There is a small mound in the park.

There is a new desk in my room.

There are many books on my desk.

There is a large Zelkova tree standing in the park.

He is working hard for his dream.