His test grade was good.

Ryo is my best friend.

Data mining is the process of extracting useful information from a large amount of data.

The analysis of big data is essential for business strategy.

Her ring was adorned with a beautiful aquamarine gemstone.

Understanding data structures is important for improving programming skills.

Please wait until it comes.

His figure suddenly disappeared.

Even though they say no one can cross that mountain, my heart always desires to cross it.

His biggest weakness is his self-centered personality.