In this fast developing world and rapid changing society, the economical and social ties link us together. We work together to finish big projects. Teamwork is very important in modern society. But, what should we do to respond to the work of other people? Should we give positive feedbacks or negative opinions? Will the negative words hurt our colleagues? Many people feel puzzling on these questions. I do believe that both positive and negative feedbacks have their applications and advantages. And the most important thing is to treat our friends sincerely.
…
