In response to the enemy's attack, we are considering a retreat.

The use of renewable energy helps protect the global environment.

The United Nations Environment Programme is providing solutions to global environmental problems.

This document contains environment-dependent characters.

The International Atomic Energy Agency is an international organization that promotes the peaceful use of nuclear energy.

His father is a very strict person.

During the Yuan dynasty, Chinese culture developed greatly.

This is my original.

Understanding the original principle is important for solving problems.

The budget for this project has been reduced by 20%.