| 21. | Many leaders of government always go into raptures at the mere mention of artistic and cultural projects. They are forever talking about the nice parks, the smart sculptures in central city and the art galleries with various valuable rarities. Nothing, they maintain , is more essential than such projects in the economic growth. |
| 只要一提起艺术和文化项目，一些政府领导就会兴奋不已，他们滔滔不绝地说着美丽的公园，城市中心漂亮的雕塑，还有满是稀世珍宝的艺术展览馆。他们认为在经济发展中，没有什么比这些艺术项目更重要了。
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| 22. | Many parents believe that additional educational activities enjoy obvious advantage. By extra studies, they maintain , their children are able to obtain many kinds of practical skills and useful knowledge, which will put them in a beneficial position in the future job markets when they grow up. |
| 许多家长相信额外的教育活动有许多优点，通过学习，他们的孩子可以获得很多实践技能和有用的知识，当他们长大后，这些对他们就业是大有好处的。
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| 23. | Although many experts from universities and institutes consistently maintain that it is an inevitable part of an independent life, parents in growing numbers are starting to realize that people, including teachers and experts in education, should pay considerable attention to this problem. |
| 尽管来自高校和研究院的许多专家坚持认为这是独立生活不可避免的一部分，然而越来越多的家长开始意识到包括教师和教育专家在内的人们应该认真对待这一问题。
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| 24. | Mankind have been trying every means to maintain the balance of nature. |
| 人类采用一切手段保持生态平衡。
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| 25. | It is much better to touch bottom at once and I know the whole truth than to maintain in suspense. |
| 立刻探明究竟和了解全部实情比心中没有着落要好得多。
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| 26. | The publisher has found it impossible to maintain the weekly issue. |
| 出版者发现已无法维持这一周刊。
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| 27. | It seems he wishes to maintain his case. |
| 看来他希望坚持自己的立场。
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| 28. | It is easy to maintain habits once formed. |
| 习惯一旦养成就容易保持下去。
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| 29. | enough food to maintain one's strength |
| 足以维持体力的食物
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| 30. | maintain law and order |
| 维持法治
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