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As the development of Science and technology, people cannot live without science for everything in our life. 随着科学技术的发展，人们的生活离不开我们生活中的一切的科学技术。 However, what is science? 但是，什么是科学？Science is the systematic observation of natural events and conditions in order to discover facts about them and to formulate laws and principles based on these facts (Christopher G. Morris, 1992). 科学是对自然事件和条件的系统观察，以便及时发现事实规律，进而根据这些事实制定法律和原则。 In this essay, I would like to explain why science is so important to us nowadays. 在这篇文章中，我想解释一下，为什么说科学在现在对我们如此重要。 People may know the history and importance of science, famous experiment and application from this essay. 从这篇文章中，人们可能会知道科学、著名实验和应用的历史和重要性。But, I will talk about my own opinion about science. 但是，我也会谈谈我自己关于科学的观点。
In conclusion, this essay briefly reviewed the history about science, scientific method, and described the famous experiments and the applications of the experiments. 总之，这篇文章简要回顾了关于科学、科学方法的历史，并且描述了著名的实验和这些实验的应用。I expressed my opinions about why scientists are difficult to gain achievement like Galileo. 我表达了我关于为什么科学家们很难获得像伽利略的成就的意见。Science has tremendous influence and considerable importance to people. 科学对人们具有巨大的影响力和很大的重要性。Though it may be possible to measure the value of material goods in term of money, it is difficult to estimate the true value of science by money. 虽然物质产品的价值可能可以用金钱来衡量，但是科学的真正价值很难用金钱来估算。

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