| 81. | A passive element cannot generate energy , but can only dissipate it or store it. |
| 一个无源元素不能产生能量，只能消耗或贮存能量。
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| 82. | It is hard to imagine a student focusing their energy on textbook while other children are playing. |
| 别的孩子在玩耍的时候，很难想象一个学生能集中精力在课本上。
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| 83. | Millions of people have to spend more time and energy on studying new skills and technology so that they can keep a favorable position in job market. |
| 千上万的人们不得不花费更多的精力和时间学习新的技术和知识，使得他们在就业市场能保持优势。
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| 84. | Although parent would be able to devote much more time and energy to their children, it must be admitted that, parent has less experience and knowledge about how to educate and supervise children, when compared with professional teachers working in kindergartens or nursery schools. |
| 尽管父母能在他们孩子身上投入更多时间和精力，但是必须承认，与工作在幼儿园的专职教师相比，他们在如何管理教育孩子方面缺乏知识和经验。
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| 85. | An advantage of using the solar energy is that it won't create any pollution. |
| 使用太阳能的优点是它不会产生任何污染。
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| 86. | Furthermore, people who addict to fashion clothes have to spend more time going shopping and pay more attention to the impression they make on others. As a result, it is impossible to devote enough time and energy in their study and job. |
| 而且，沉湎于时尚服装的人们不得不花费更多时间逛商店，更加注意自己给别人的印象。因此，他们不可能有足够的时间用于学习或工作。
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| 87. | The law of conservation and transformation of energy is the chief basis of physical, astronomical and chemical reasoning as well as of engineering practice. |
| 能量守恒和能量转换的定律，不仅是工程实践的主要根据，而且也是物理、天文以及化学等方面推理的主要根据。
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| 88. | What's more, living in school can save them a great deal of time on the way between home and school everyday, so they would be able to concentrate more time and energy on their academic work. |
| 而且，生活在学校里能节省大量每天往返于学校和家的路上的时间，这会使他们有更多的时间和精力放在学习上。
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| 89. | Aged people are always envious of young people's energy . |
| 上年纪的人总羡慕年轻人的精力。
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| 90. | What is called atomic energy is actually nuclear energy. |
| 所谓原子能实际上就是核能。
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