He became good at playing the piano, and finally acquired the skill.

He was so ashamed of his failure that he wished he could crawl into a hole.

Due to the earthquake, cracks appeared in the wall.

This information sank in immediately.

His cooking skills are among the top five in the local area.

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

A sea otter is a very cute animal that lives in the sea.

In the old days, people were moved by the strength and beauty of the sea lion.

A sea lion is a type of marine animal, and it is very rare.

The sea otter is a rare animal, and its ecology is not well known.