His dignified attitude made a deep impression on the people around him.

We have started a petition to solve this problem.

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.

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.

The toxicity of this medicine is very high, so please do not take more than the appropriate amount.