世界变幻莫测,时时刻刻都在改变,每个人都无法预测下一秒会发生什么,我们能做的只有改变自己,用我们的努力提升自己,让自己变得更有勇气。上小学时,我挺内向的,一次偶然的机会,让我有所改变。五年级时,班主任老师让每人用十分钟时间介绍一本自己喜欢的书,与大家分享。既然要做,就一定要把它做完美。我花了很长时间准备,标上重点,和妈妈一遍遍串词练习,终于大功告成。上 The world is unpredictable and changing all the time. Everyone can not predict what will happen in the next second. All we can do is to change ourselves and use our efforts to upgrade ourselves and make ourselves more courageous. When I was in elementary school, I was quite introverted, and by chance I had some changes. Fifth grade, the teacher in charge of the teacher let each person use ten minutes to introduce a favorite book, to share with you. Since you want to do, we must make it perfect. It took me a long time to prepare, mark the key points, and practice my mandarin strings over and over again, and finally I was done. on