Modifier + 人士
人士 (rénshì) means "personage" or "figure," used as a formal way to refer to people of a particular type or profession. It is typically preceded by a modifier that specifies the kind of person, such as 专业人士 (professional) or 知名人士 (notable figure).
许多业内人士对这个产品表示认可。
Xǔduō yènèi rénshì duì zhège chǎnpǐn biǎoshì rènkě.
Many industry insiders have expressed approval of this product.
这次会议邀请了不少知名人士。
Zhè cì huìyì yāoqǐng le bù shǎo zhīmíng rénshì.
Quite a few well-known figures were invited to this meeting.
专业人士建议我们尽早做检查。
Zhuānyè rénshì jiànyì wǒmen jǐnzǎo zuò jiǎnchá.
Professionals advise us to get checked as early as possible.