Today I lost my MP5 in the classroom due to my carelessness. After supper, I just put it in my bag which was in classroom, and then went out with Stella. Almost one hour later, it was missing. If I am right, this is the first time that I've lost my important thing in college. Before I was always very cautious in case of some unexpected things.

All of a sudden, my mind got blank. I am endeavoring to find it out in my bag, but I tried in vain. it was still not there. At that very moment, I know exactly how others feel when they lost their cellphone. I know exactly how they feel. Then I called  my parents, who didn't say any complaints but told me to buy another one tomorrow. That made me more comfortable.

we can't be careful in those occasions. It is awefully DANGEROUS.