請問 ( 行內人) 的英文點串

In line human

2006-10-27 16:48:57 補充：
香港電影正在衰退,行內人歸咎於侵權行為The Hong Kong movie is declining,In the line the human puts the blame on the abuse of authority

Expert(s) of XXX ( 那方面的專家 )
Professional(s) 專業人士

inside-person (知內情的人)
professional (在行內專案人員)
in-field(行內人) e.g This seminar is tailor made for those infield person.