"I do" echoes from a distance.

She began to call to her friends for help, but could only hear her own cries echoing back.

His earnest instructions still ring in my ears.

But what resounded off the walls of a university classroom in the heart of this capital city sounded little like the classical Chinese operatic style he was trying to imitate.

And I believe that our voice can be heard and appreciated because it echoes the ever-lasting voice in the hearts of all human beings.