At my family's furniture store, I handled employee grievances.
在我们家族的家具店，我就是处理员工不满的。
英语百科
Grievance
（重定向自Employee grievances）
In general, grievance (from class. lat. gravis: heavy) is a wrong or hardship suffered, real or supposed, which forms legitimate grounds of complaint. In the past, the word meant oppressive state of things.