My grandfather had a small farm. He also worked in a factory.
One autumn，he promised to help his neighbor harvest（收获） his corn. But after harvesting his own corn，Grandpa's little machine didn't work. At the same time，the factory where Grandpa worked began to require overtime（加班）. He had to leave the farm early in the morning and didn't get home until after sunset. It now seemed impossible to help out his neighbor.
One night，Grandpa decided that he wouldn't let his neighbor's harvest rot（腐烂）in the field. Without a machine，he would harvest it by hand.
"When do you think you'll have time to do it？"asked my grandma. "Besides，it'd be too dark. ""There's still one more full moon in October. If the weather is clear，I think I can do it，"he said.
And so a few days later，after lots of busy work at the factory，my grandpa made his way to the field. The weather was cold but clear，and the full moon was glowing（发光）. He worked through the night to keep his word（遵守诺言）.
Sometimes，when I want to put off responsibilities（责任），I'd see my grandfather cutting corn in the light of the harvest moon.
①he was too tired to work
②he had so much work in the factory
③his machine for picking corn didn't work
④the weather was not clear enough
