He continues to search for the secret of longevity.

He vowed eternal love to her.

He made a vow of eternal love to her.

When I compared heights with him, I was a little taller.

He found it difficult to control his sexual urges.

He made a bronze sculpture.

Understanding the traits of cats is important for building a good relationship with them.

His success is due to his tenacity.

He suffered from a transient disease, but recovered quickly.

I am interested in the work of book binding.