Waste a rice ball, lose the painstaking efforts of parents and the sweat of farmers. Don't waste food.

Waste a rice ball, lose parents' painstaking efforts, and farmers sweat

Save a grain, save a starving person, and do good deeds;

throw a bowl of leftovers less, which reduces the consumption of resources, and the water is green and the sky is blue;

saving a grain is worthy of the hard work of farmers, and their hands are calloused;