Based on the general laws of international exchanges and language exchanges, as well as the practice of studying abroad, teaching, diplomacy, and academic research for more than 40 years, the author systematically introduces people from all walks of life in the new era to travel, live, study, academic exchanges, Instructions during work or business, introducing English thinking logic, idiomatic expressions, and oral communication skills in sub-topics, helping readers improve English thinking, conversation, speech, discussion, theory, and defense skills, effectively adapt to the new environment of foreign home life, and effectively host And participate in cross-cultural social and cultural entertainment activities, effectively realize professional ideals, and effectively demonstrate the cultural image of contemporary Chinese citizens.