a person who knows a lot about a group or an organization, because they are part of it 知内情者;内部的人 The situation was described by one insider as ‘absolute chaos’. 据一名内部人士说,实情是乱作一团。 an insider’s view of the movie industry 一位业内人士对电影业的看法
Oxford Collocations DictionaryInsider is used before these nouns:- status
- trading
- industry