Compared to the living standard of the past period and nowadays, it is no denying that people’s nice living environment and high quality of living level owing to the rapid development of science and technology. The advantages are too obvious and valuable to be neglected. In the past time people have to spend days on the way if they want to visit friends who lived far away, now taking cars, trains or airplanes can greatly shorten the tour time. And the great invention i.e. the computer, makes people communicate more conveniently. However, there exist some disadvantages as well. For instance, the worst problem that is blamed for the quick development of science and technology is environmental pollution. A large number of cars and factory emerged in recent years, which is giving off lots of harmful gas and waste. In addition, the forest is reduced and many kinds of animals disappeared. It is time for us to take care of the earth.
與過去和現在的生活水平相比，不可否認的是，人們良好的生活環境和高質量的生活水平要歸功于科學技術的快速發展。這些優勢太明顯和有價值，不容忽視。過去，如果人們想拜訪住在很遠的朋友，就不得不在路上呆幾天，現在坐汽車、火車或飛機可以大大縮短旅游時間。偉大的發明，即計算機，讓人們更方便地溝通。然而，也存在一些缺點。例如，科學技術快速發展的最大問題是環境污染問題。近年來出現了大量的汽車和工廠，排放了大量有害氣體和廢物。此外，森林正在減少，許多種類的動物消失了。真的是我們照顧地球的時候了。
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