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I don't know how serious the situation is in other countries, which is about the people under 18 years who have got nearsighted. The percentages of nearsighted children and teenages in my country has been increasing rapidly in the past ten years as the smart phones were widely used. More and more reports have proved that the serious myopia problem is really related to the time children spent on their smart phones. Video games, live streaming and movies are the main parts of a chid's life, which is very different from their parents' childhood that was full of outdoor activities. Screen time reduces children's time of looking far away and enjoying the sunshines. The two activites are just the essentials to keep children's eyes growing on an healthy way. The chidren's prescriptions are really hard to control. It's an annoying problem which not only costs too much money ,but also makes children feel unfortable during the classtime. Fortunately, in recent years, govenment has made many policies to protect children to avoid being nearsighted in an early age. Meanwhile technology can also help children treat myopia, such as Red light. But how to effectively reduce children's online time is the key to solve the myopia problem.
2024年1月2日
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On War. If a friendly alien came to earth, say, and was interested in knowing what war is and why it happen, I would be more than happy to recommend them where to start to learn the basics about it. All has been said about war already, in many different ways. Poets, philosophers, politicians, painters, singers and many, many others might explain it to our very welcome alien. Surely, some of those smart persons would do it with beautiful, touching sentences; others with brainy, clever statements; and still others, with awful, atrocious paintings or pictures. All very painful to read and see, no doubt. I am not sure if our curious alien might be able to comprehend what the point of all this is about, and I wouldn’t blame them if first thing they did were to hurry back to their spacecraft and set off home at the speed of light, if such a thing is possible. Meanwhile, we all have no option other than remain on earth and cope with this overwhelming and heartbreaking reality. But the big question is: will humanity see the definitive end of war one day? Unfortunately, I’m not as optimistic as I would like to be. For one thing, war is a phenomenon that has came along with human beings from the very moment one of our ancestors were able to use a stone or a trunk as an offensive weapon against another human being. Plato, the ancient Greek philosopher, already answered that question 25 centuries ago, and pitifully in a terrible, discouraging way: ‘Only the dead have seen the end of war.’
2024年1月2日
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However, there are problems with this interpretation. By the time of his death he had written 10s of thousands of words. He says: those who are good at discussing antiquity must demonstrate The validity of what they say in terms of modern times; Those who are good at discussing heaven must show proofs from the human world. In discussions of all kinds, men value what is in accord with the facts and what can be proved to be valid. Hence if a man sits on his mat propounding some theory, He should be able to stand right up and put it into practice, and show that it can be extended over a wide area with equal validity. One may sit down and propound such a theory, but he cannot stand up and put it into practice, nor can he extend it over a wide area with any success At all. How, then, could it be anything but erroneous?
2024年1月1日
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