Please look at the index of this book.

I have been to Saint Petersburg.

He struggled to understand the object.

The ringtone of my mobile phone is a Beatles song.

My goal is to speak Japanese fluently.

The police are looking for an eyewitness to the incident.

The seismologist is studying earthquake prediction and disaster prevention.

I check the news on Twitter every day.

This mirror has a convex shape.

I bought a new Convex (tape measure).