题目：I have lost something valuable
正文：During our lifetime,we may lose large numbers of objects,maybe money,luggage or something else,and we normally won't keep them in mind.However,when we lose something valuable,it may be a pity to us,and we will always feeling regretful why we don't keep it well.
I have lost something valuable not long before,that is my cellphone.
On Sunday last week,as I am a resident student,I have to go back to school in advance,so I took a bus as usual.When I got on the bus,I had to say that it was too crowded to stand firm.At this moment,my cell phone rang,so I had to spare one hand answering the phone,then put it in my coat's pocket,nothing special.After a while,I obviously felt someone pushing me ahead,it was a young man,I thought that he might want to get off the bus,so I tried my best to spare some space for him,however,he stopped pushing me,instead,he just stood behind my back.After a while,it was my turn to get off the bus,I couldn't wait to do so.At this moment,I wanted to see the time,so I put my hand into my pocket,in order to take out my cell phone.To my surprise,I didn't find it even though I went over all my pockets including my bag,however,no result.Suddenly,I realized that it must be the said young man,it was hime who stole my cell phone,thus made me feel so angry.I had to feel sorry for myself.
To be frank,losing a cell phone is nothing,I should have treated it like the experience and lessons.However,the cell phone contains all the sending and receiving short messages with my girl friend.These words are all about my emotional experience,each words witness my love.In my mind,nothing is more importand and precious than these words.
How unlucky I am!After the matter,I thought a lot.In current society,what we lose may not only be an object,but the belief on the people in it.A thief is not horrible,what is really horrible is the mind of people.In my opinion,wherever we are,we should remember to learn to protect ourselves,no matter in the physical aspects or mental aspects.
希望能帮上你!