求翻译：在我上小学的时候，我发现我的同学偷了我的文具，当我知道这个事情时，我告诉了家人，准备到了第二天告诉老师。当我爷爷听到这件事时，却劝我不要告发他，当时我不明白为什么爷爷要偏袒一个小偷。是什么意思？

In my elementary school, I found my classmates stole my stationery, I know this thing, I told the family, ready to tell the teacher the next day. When my grandfather heard this, they advised me not to denounce him, I did not understand why my grandfather should favor a thief.

In my primary school, I found my classmates stole my stationery, when I know what this time, I told my family, preparing to go to the first 2 days were told his teacher. When I heard this, my grandfather was advised me not to denounce him at that time, I do not understand why my grandfather to favor

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In my elementary school days, I found my classmate stole my stationery, and when I know it when I told my family, ready to tell the teacher the next day. When my grandfather upon hearing the matter, but advised me not denounced him, then I don't know why Grandpa to favour a thief.

When I studied in the primary school, I find my classmates have stolen my stationery, when I knew this thing, I told the family, plan to arrive and tell the teacher the next day. When my grandfather heard this, but advise me not to denounce him, I did not understand at that time why the grandfather