My overall rating for the Focals would be 3 out of 5.

我对 Focals 的总体评价是 3 分（满分 5 分）。

While it's fine to assign a separate number for each of the 4 criteria, ultimately I want you to come up with a single overall rating.

虽然可以为 4 个标准中的每一个分配一个单独的数字， 但最终我希望您得出一个整体评分。