一个人的一生中有许许多多的失败与挫折，有时一点小事都可能让一个人终身难忘。
There are many failures and frustrations in a person's life. Sometimes a little incident can make a person unforgettable.
一次，我数学小测试考的不好，情绪十分低落。这时，刘老师找到我，让我到她的办公室订正试卷。我一看试卷，错的正是那被我改了好几遍的选择题。我想起那天考试的情形：试卷做的很仔细，写完后又认真地检查了几遍，老觉得选择题有些不对于是就做了改动，把我自己都弄糊涂了感到自己学的还是不够扎实。想到这里，我不禁流下了会很的眼泪，可是又有什么办法呢？世上没有后悔药，现实就是现实，过去的事是永远无法改变的。回到家，妈妈知道后，不但没有责怪我，反而鼓励说：“这次别灰心，把基础知识学好再闯下一关。”
Once, I did not do well in the math test, and I was very depressed. At this time, Miss Liu found me and asked me to revise the paper in her office. As soon as I look at the paper, the wrong one is the multiple choice question which I have changed several times. I think of the exam that day: the exam paper was carefully done, and I carefully checked it several times after I wrote it. I always felt that if the multiple-choice questions were not right, I had to make changes, which confused me, and I felt that what I learned was not solid enough. Thinking of this, I can't help but shed tears, but what can I do? There is no regret medicine in the world, reality is reality, and the past can never be changed. When I got home, my mother didn't blame me. Instead, she encouraged me to say, "don't lose heart this time. Learn the basic knowledge well and go to the next level."
我听了，心里的那片乌云就这样被抹掉了。
When I heard it, the dark cloud in my heart was erased.