| 41. | They had laboured for three years to produce this floating work of art; |
| 瑞典人辛辛苦苦干了3年才建成这件水上艺术品，
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| 42. | Most cells of the pancreas produce digestive enzymes. |
| 胰腺的大部分细胞产生酶。
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| 43. | Many people believe that international tourism produce positive effects on economic growth and local government should be encouraged to promote international tourism. |
| 许多人认为国际旅游对经济发展有积极作用，应鼓励地方政府发展国际旅游。
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| 44. | No one can doubt the essential fact that the traffic problem over the last years has caused wide public concern all over the world. Experts in increasing numbers are beginning to believe that such situation would produce unfavorable effects on economic growth of local areas. |
| 没有人能否认这一重要事实：最近几年交通问题在全世界受到了普遍关注。越来越多的专家开始相信这种状况将对当地的经济发展产生不利影响。
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| 45. | Children are undergoing fast physical development; lack of physical exercise may produce disastrous influence on their later life. |
| 孩子们正处于身体快速发育时期，缺乏体育锻炼可能会对他们未来的生活造成严重的影响。
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| 46. | Dependence is marked first by an increased tolerance, with more and more of the substance required to produce the desired effect, and then by the appearance of unpleasant withdrawal symptoms when the substance is discontinued. |
| 对药品的依赖性首先表现为不断增长的耐药量，要产生想得到的效果所 需要的药品剂量越来越大，然后表现为当停止用药后，令人不快的停药 症状的出现。
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| 47. | From what has been discussed above, we may safely draw a conclusion that part-time job can produce a far-reaching impact on students and they should be encouraged to take part-time job, which will benefit students and their family, even the society as a whole. |
| 通过上面的讨论，我们不难得出结论：业余工作对学生们会产生深远的影响，我们应鼓励学生从事业余工作，这将有利于学生和他们的家庭，甚至整个社会。
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| 48. | Thus, in the American economic system it is the demand of individual consumers, coupled with the desire of businessmen to maximize profits and the desire of individuals to maximize their incomes, that together determine what shall be produced and how resources are used to produce it. |
| 因此，在美国的经济体系中，个体消费者的需求与商人试图最大化其利润的欲望和个人想最大化其收入效用的欲望相结合，一起决定了什么应该被制造，以及资源如何被用来制造它们。
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| 49. | She can produce delicious meal from very simple ingredients. |
| 她能用简单配料烹调出美味的饭菜。
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| 50. | Female sheep produce one or two lambs at a time. |
| 母羊一次生一到两只羊羔。
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