foreign friends. all right! history lessons bring us much enjoyment, and i can have a talk with the great people in history, such as conficius, qinshihuang, ****** yat-sen, and so on. at last, i would like to say, we shouldn’t waste time, life is limited while knowledge is boundless. aha, there is so much to learn. maybe you like reading; maybe you like singing;… maybe you have a lot of other hobbies, it doesn’t matter, if you like it, just learn it. just do it. don’t hesitate. knowledge is power. there is no choice but to learn. what’s more, you are never too old to learn. am i right? my friends, open your eyes, can you see the flame of knowledge burning forever? yeah, i can see it. i can see it clearly. come on, boys and girls, ladies and gentlemen. let’s swim in the ocean of knowledge; let’s climb on the top of knowledge. at that time, you will be a learned person with much knowledge. you will be the happiest person in the world. that’s all. thank you for you attention. ……………………