C2817 Efficiency Equals Money

"What do you want to say?" Two hours later, Dongfang Qingyu stopped to rest. He did not need to worry about the steaming food. He just sat down and ate.

"You have finished all your work. What are the people doing down there?" Wang Feiyan whispered. Mining was different from farming. If they were farming, they could just sprinkle a large amount of people down