Spectroscopy is an important means of investigating the properties of matter.

He thought deeply about the result of that juristic act.

His attack was very powerful.

Next month, I am planning my first visit to China.

I plan to visit China next month.

He used a stone as a projectile.

This area has many grabens, making the terrain distinctive.

Chikou is my best friend.

He was involved in anti-Japanese activities.

He took out his wallet from his pocket.