Music has the power to heal, to unite, and to bring hope.
Coal’s future depends on our ability to make it cleaner and more efficient.
我的画作是我的孩子，每一个都有自己的灵魂。
In darkness, we learn to cherish the light.
The Liskov Substitution Principle is a fundamental concept in object-oriented programming, ensuring that derived classes can be used in place of their base classes without altering the correctness of the program.