During the Great Leap Forward, China's economy changed dramatically.

This microscope has excellent magnification capabilities.

There is a big meeting at school tomorrow.

After the great earthquake disaster, we worked together to rebuild our home.

During the Great Kanto Earthquake, my grandfather was still a child.

We are planning a large-scale project.

Koudai always raises his hand first in class.

Daisuke is my best friend.

Keita is my best friend.

Michihiro is my best friend.