clear distinction between reward and punishment.if you can't do something well, you must be punished!however, if it is done, it will be rewarded even more!Shi Tianqi did a good job this time, so he w...how to ask for help Didn't you want me to leave just now "while wiping away his tears, Zhang Jian choked up and said, "Mr. Ye, I really made a mistake. I would like to be a cow and horse for you. Plea...