Despite his old age, he is still active.

It is the government's responsibility to improve the lives of the common people.

When I woke up at dawn, I heard the chirping of birds.

Please refrigerate the beer.

This refrigeration system is very efficient.

He gave a speech to encourage his teammates.

Please refer to this example.

Please show me a working example of this project.

This precedent will have a significant impact on future trials.

I was surprised by his cold-heartedness.