This house has been lived in by successive generations of the family.

This sinusoid is a channel for carrying venous blood.

I love eating shellfish.

He is receiving treatment for scrofula.

He started a new business, but as the proverb 'the road to happiness is strewn with setbacks' suggests, he is facing many difficulties.

He is deeply studying the teachings of Prajnaparamita.

He is an expert in paleoanthropology, studying the lives of ancient humans.

He is majoring in anthropology at university.

He is majoring in ichthyology at university.

Cartilaginous fishes include fish such as sharks and rays.