At noon on the day of hoeing, hematopoietic stem cells, Along the River During the Qingming Festival, Compound Grass Coral, Square Difference Formula, Monitor and Academic Committee, Totally Don’t Understand, Bent the Bow to Shoot the Eagle, Legend of Sword and Fairy, Dynasty Drying red wine, planting dogwood on Double Ninth Festival, the Yellow River flows into the sea, clear shadows dance, egrets ascend the blue sky, pear blossoms press begonias, winding paths lead to secluded places.