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例句 1. The main habitat of the various animals, the forest, has been destroyed by human behavior. 森林这一各类动物的主要栖息地已经由于人类行为而遭到破坏。
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2. It’s true that the development of urban has been bad for some species of birds, but the development also provides better and larger habitats for other types, that’s why many city dwellers often complain about increased bird populations. 诚然，城市的发展会对某些种类的鸟不利，但同时城市发展也会为其他种类的鸟提供更好更大的栖息地，这就是为什么许多城市居民总是抱怨鸟类的数量增多。
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3. One reason for the decline of the number of amphibians is that their habitats have been destroyed. 两栖动物数目减少的一个原因是其栖息地遭到了破坏。
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hacker［‘hækər］n. 电脑黑客
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例句 They have to recognize the importance of protecting their articles and data from malicious hackers. 他们必须认识到保护文章和数据不被恶意黑客攻击的重要性。
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immune［i’mju
:n］a. 免疫的；不受影响的；免除的
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搭配 immune system 免疫系统
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例句 1. Moreover, air pollution may result in health problems particularly for children and the elderly whose immune systems are weaker. 此外，空气污染还可能导致健康问题，尤其是对于那些免疫系统较弱的儿童和老年人。
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2. However, Albert Einstein, the greatest physicist who created the theory of relativity, was immune to wealth. 然而，提出了相对论的伟大物理学家艾伯特•爱因斯坦却没有获得财富。
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3. This area was immune to drought. 这个地区未受旱灾影响。
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要点 immune除了在医学方面可以表示“免疫的”以外，还有“不受某种事物的影响”的含义，比如：It is immune to…这个句型就可以表示“…不受…的影响”。
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infect［in’fekt］v. 传染，感染；影响
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例句 Once the animals infected by the virus reach the country, the virus will attack the native species and devastate the whole population. 一旦被病毒感染的动物到达这个国家，这种病毒就会袭击当地的物种并毁灭整个种群。
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infection［in’fekʃn］n. 传染，感染；传染病
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搭配 respiratory infection 呼吸道感染
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例句 1. That’s beyond what we could expect if infections caused by pollution impact a lot of people. 如果由污染引起的传染病影响了许多人，这种情况是我们难以想象的。
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2. The death of sea otters is due to the increased sources of ocean contaminants that lead to greater vulnerability to infections. 海獭的死亡是由于越来越多的海洋污染物来源，这些污染物来源使海獭面对感染时抵抗力更弱。
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3. In the past, we might die from some reason as simple as an infection from a cut, but with the development of medicine, now we have antibiotics and other medicines to cure us. 过去，我们可能会因为像是简单的伤口感染这样的原因而死掉，但随着医学的发展，如今有抗生素和其他药物可以治愈我们。
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infinite［‘infinət］a. 无限的，无穷的 n. 无限
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例句 1. They must realize that the depth of this subject is almost to be infinite while both the students’ energy and time are limited. 他们必须认识到，这门学科的深度几乎是无穷无尽的，而学生们的精力和时间却都是有限的。
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2. They argue that since hydrogen can be extracted from many resources including water, therefore the fuel cell engine is a great invention for it is powered by this infinite source of energy. 他们认为，既然氢气可以从包括水在内的许多种物质中提取，那么燃料电池发动机毫无疑问是一个伟大的发明，因为其驱动能量的来源是无限的。
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innovation［ˌinə’veiʃn］n. 新方法；新事物；创新
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例句 Innovation and change are integral parts of modern life. 创新和改变是现代生活不可或缺的部分。
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insight［‘insait］n. 洞察力，洞悉；领悟
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例句 1. We all hope to have a group member who works especially well and has the insight on problems we are facing. 我们都希望拥有这样一位团队成员，他/她工作出色，而且在我们面临的问题上有见解。
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