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æè¦ï¼šWe Need to Broaden Our Knowledgeæ纲1. 科å¦æŠ€æœ¯æ˜¯ç¤¾ä¼šå‘展所ä¸å¯ç¼ºå°‘的。2. 社会科å¦å’Œè‡ªç„¶ç§‘å¦ç›¸äº’渗é€ã€‚3. 现代大å¦ç”Ÿéœ€è¦å¹¿åšçš„知识。 Our civilization is mainly attributed to the achievements of science and technology. With the broadening of human knowledge, we know more and more about the world we are living in. Human beings use their knowledge to change the environment, utilize the natural re sour..