优秀员工奖杯英文称作"Employee of the Month Award"。这个奖项通常是由公司内部组织或管理层颁发，旨在表彰在一定时间内表现优秀的员工。它的来源可能是为了提高员工的工作积极性和动力，同时也为公司增加正面的声誉和形象。

例句：

Congratulations to John, who has been awarded Employee of the Month for his outstanding contributions to the company.
The Employee of the Month award recognizes the hard work and dedication of our staff.
We are pleased to announce that Sarah has been selected as Employee of the Month for her exceptional performance and customer service skills.

中文翻译：

祝贺约翰获得优秀员工奖杯，他为公司做出了杰出的贡献。
优秀员工奖杯表彰了员工的辛勤工作和奉献精神。
我们很高兴地宣布，莎拉因其出色的表现和客户服务技能被选为本月的优秀员工。