the outside world idiom (also the world outside)
外界，外部世界
things that are common in normal life but are not part of your experience
After 20 years in prison, he had no idea about the outside world. 在被监禁了20年以后，他对外面的世界一无所知。
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。