His painting is characterized by a pattern of concentric circles.

My daughter goes to the nursery school every day.

My younger sister is missing school because of tonsillitis.

I bought a new notebook at the 100-yen shop.

I found some useful kitchen items at the 100-yen shop.

We use warm salt water to thaw tuna.

She was diagnosed with salpingitis.

This equation has homogeneity.

Solving a linear equation is difficult.

Keijiro is my best friend.