Science is difficult. According to the relevant public information, Science magazine is regarded as a century-old shop in science publishing industry. With the unremitting efforts of editors from generation to generation, relatively high-level scientific research papers are published continuously. There is a limited page contest once a week, covering physics, chemistry, biology, materials and so on. It is quite difficult to publish articles on it. In contrast, sci, an internationally renowned SCI publication, has less gold content than Science magazine and less competitive pressure.