staff和workforce区别

staff是员工的意思，而workforce则是劳动力的意思，区别可以从以下例子看出：

I don't have enough workforce to finish this project, that is why we need more staff, who has skills and experience. 我没有足够的劳动力来完成这个项目，这就是为什么我们需要更多有技能和经验的员工。