英语值日报告20个英语单词左右

hello,everyone. today,I am on duty.I want to tell you something about inventions. We study everyday,.when we study at night,we need a light .everybody knows that the light was invented by Edison.but do you know when was itwas invented?It was invented in 1879.Edison invented lights ,because he worked very hard .although he had failed,but he always worked hard.at last,he succeed. so if we want to learn well we should work hard from now on.