短文改错。假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误涉及一个单词的增加、删除或修改。 增加: 在缺词处加一个漏字符号（∧）, 并在其下写出该加的词。 删除: 把多余的词用斜线（\）划掉。 修改: 在错的词下划一横线, 并在该词下面写出修改后的词。

注意: 1.每处错误及其修改均仅限一词；2.只允许修改10处, 多者（从第11处起）不计分。

    Failure is common in our life. No one can avoid them. When we fail in doing something, we often feel very depressing. Sometimes failure can make us lose hearts. So no one is willing to fail. On the contrary, success can bring us sense of pride. If one enjoys his continuous success in his career, he will have confidence to himself. Therefore, failure is the mother of success. A failure doesn't mean one can never be successfully. Those who are always afraid failure will never succeed. In a word, as long as we can get some lessons and experiences from our failure, we'll be sure to succeed.