the people who are employed in a company, organization, or one of the armed forces

The new director is likely to make major changes in personnel. 新主管可能会在人员上作大的变动。

military personnel 军事人员

the department of a company or organization that deals with its employees when they first join, when they need training, or when they have any problems

Personnel will help you find somewhere to live. 人事部会帮你租一套公寓。

For more information about the job, please contact the personnel manager. 要了解这份工作的详细情况，请和人事部经理联系。