339 Solution

When he was hungry, he would take out a pancake he brought from home and take a bite or two. When he was thirsty, he would drink the water from his water bottle. As long as he did not succumb to exhaustion, he absolutely refused to allow himself to stop! Even if the machinery stopped, he still wanted to continue working! It was for nothing else but for his daughter!

The scene changed again. Cao Can dragged his exhausted body and went home on a bus.

The lights at home were dim. In order to save money, they had deliberately switched the high wattage bulbs to ones with smaller wattages.