They have been bargaining over work rules and staffing requirements
问题描述：
They have been bargaining over work rules and staffing requirements
那个staffing requirement的意思
答
staffing是staff的动词形式,staff作动词时,有一种意思是provide with staff即安置员工.staffing requirement 是员工安置的要求
所以该句子翻译为：他们一直在为工作制度和员工安置问题讨价还价.