That person is my friend.

His job title is a doctor.

He plays the bass in the band.

The base of this building is very strong.

The bass sound of this song is very deep and comfortable.

BACE plays an important role in Alzheimer's disease research.

He used a stone as a projectile.

I believe that the coming days will surely be bright.

We visited that monument and learned about its history.

Many insects live in the vicinity of the roots of this tree.