英语,帮忙翻译下

a letter for my dear mum.[写给妈妈的信]
only graduated from a primary.[小学水平]

小学水平. The primary level

写给妈妈的信 a letter for mother

要内容……

Dear Mum,
I miss you.
……
From,
XXX

a pupil's level
a letter to mum

The primary level. The letter was addressed to her mother :

写给妈妈的信：
A letter to mum