错误的教训 A lesson of my mistake(插图)
A lesson I never forget.I remember that morning ,my teacher told us that this lesson was very difficult for us to learn,and told us to go over it carefully.But Ididn’t think it is important,So I didn’t go over it.I played the computer games instead.Next day we had an exam,I failed it.I learnt that student must study hader.No pains no gains!
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