Archaebacteria are one of the oldest life forms on Earth.

I am learning Old English.

This antique clock is a keepsake from my grandfather.

This old document is very important for understanding our history.

Mr. Furukyo is my best friend.

Pangu, who appears in Chinese mythology, is said to have created the universe.

He is good at playing the guqin.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

She used to be a prostitute, but now she has started a new life.

Will you marry me?