He bought new swimming trunks.

I am majoring in anatomy at university.

This area is still undeveloped and rich in nature.

This area is still undeveloped, and nature is abundant.

We often go to conveyor belt sushi on weekends.

This equation has homogeneity.

Solving a linear equation is difficult.

Keijiro is my best friend.

Sennenji is my best friend.

He always sticks his nose into other people's business like a busybody.