He is known as an expert in gerontology.

My old dog is still energetic.

That lofty building was a beautiful structure with multiple layers.

I steamed dumplings in a bamboo steamer.

Our body is constantly excreting waste products.

We admired the beautiful scenery from the watchtower at the top of the mountain.

Recently, it's become difficult for me to read the newspaper, so I might have presbyopia.

He is a nobleman's child who was raised in an aristocrat's home.

He continued hard labor all day long.

He is deeply involved in the deaf community.