The big rabbit was sick, the second rabbit looked at it, the third rabbit bought medicine, the fourth rabbit boiled it, the fifth rabbit died, the sixth rabbit carried it, the seventh rabbit dug a hole, the eighth rabbit buried it, the ninth rabbit sat on the ground and cried, and the tenth rabbit asked it why it was crying? Nine Rabbits said: Five Rabbits will never come back once they leave!
Intention: It is okay to regret, although it may not be useful, but we have this right.