Most people have regreted their element's of time past. Because the past times cannot be repeated and no one can go back to the past,people regret. And they want to go back to the past or live again some moment, like the movie, "Back to the future"
My latest regret of times past was last september. I went field trip to U.S. with KMLA familly. It was a exciting experiance. But I was nerveous at that time because of an up-coming chemistry olympiad at November. It would be very important for my career. So I brought chemistry textbook to study. And I realized it was silly.
I tried to study at night in the hotel room. My friends came to my room to play with me, and I kicked them out. However then I fell asleep. So I couldn't play with my friends, and neither could I study a lot. I only read 3 pages during field trip. And I hardly played at all.
if I had the chance to go to that trip with my friends, I would only rather than study.
I learned it is important to concentrate in playing while I do.
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