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很多人都熟悉这句话:“水能载舟也覆舟”,这就是说对一种物质使用得当就能为人类做出有益的贡献,驾驭不好便可能造成灾祸。
Many people are familiar with the phrase: “Water can also carry boats and capsize,” meaning that the proper use of a substance can make a useful contribution to mankind and mismanagement can cause disaster.