中学毕业在英语中可以说作"to graduate from middle school"。这个短语来自于"graduate"一词，意思是"完成学业，获得学位"。例如：

I graduated from middle school last year.

我去年从中学毕业了。

She plans to study abroad after she graduates from middle school.

她打算在中学毕业后出国留学。