There are 10 houses on this street.

We have equipped everything necessary for the trip.

He participated in the anti-war movement.

He always keeps in mind the phrase 'If one learns without thinking, it is a waste.'

My great-grandfather was a leading painter in Japan when he was young.

Heavy hydrogen is one of the isotopes of hydrogen.

He has fundamental knowledge of mathematics.

Carbon monoxide is a colorless, odorless gas, and it is dangerous to inhale.

I am majoring in histology at university.

This rodenticide is particularly effective against mice.