The back wave of the Yangtze River pushes the front wave, and the front wave dies on the beach. When will the scenery of the back waves push the front waves last? It's different in an instant.
The back waves of the Yangtze River push the front waves, and a new generation wins the old ones.
The waves behind the Yangtze River push the waves before, and the new people in the world drive the old people away.
The waves behind the Yangtze River push the waves before, and today's people in the world are better than the ancients.
The back waves of the Yangtze River push the front waves, and the waves are more intense with each generation.