The efficiency of this machine is very high.

We should aim for the optimization of our operations.

We found a new way to optimize the project.

Ritsuo is my best friend.

This country values autonomy.

He chose to leave home at a young age and be independent.

He was excited to try the standing position.

He succeeded in making his company independent.

Japan became an independent state in 1945.

We celebrate Independence Day every year.