A careless mistake

Everyday,everyone would alway learn something.of course ,i too learned something.but as we learned, sometime we don't even know that we,ourself have learned something valuable.

For me,i had learned a valuable lesson for myself.I have "loss" my wallet.I searched high and low for my wallet .In the end, I found it on the table in the classroom.i regret it it for being careless and it will never happen again.