几乎午夜了，我们今天就到此为止吧。

It's almost midnight - let's ___call ___it ___a ___day.

她决定到此为止，结束这段关系。

She decided to ___call ___it ___a ___day and end the relationship.

完成项目后，我们终于可以收工了。

After completing the project, we can finally ___call ___it ___a ___day.