We petitioned the mayor to protect the park.

He values practical reason and always strives to act ethically.

He is a very shy person in real life.

I think that plan lacks realism.

The certainty of this plan's success is high.

I think this plan is highly practical.

In order to understand the actual condition of this company, we need to investigate more deeply.

The educational methods of schools under the old system were significantly different from those of current schools.

New technology is crowding out the old ones.

This chemical is very toxic.