| 41. | Because the molecules in liquids are so densely packed together , the average time between collisions is a picosecond or less. |
| 由于液体中的分子很密地积聚在一起，所以，两次碰撞之间的平均时间间隔只有一微微秒或者更短些。
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| 42. | No one can deny the basic fact that it is impossible for average workers to master those high-technology skills easily. |
| 没有人能否认这一基本事实：对于一般工人来讲，轻松掌握这些技术是不可能的。
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| 43. | Average inflation in the big seven industrial economies fell to a mere 3% last year, close to its lowest level in 30 years, before rising slightly to 5% this July. |
| 七大工业国家的通货膨胀率去年下降到了3%，接近30年来最低水平，今年7月才小幅上涨到5%，比许多国家70年代和80年代两位数低了很多。
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| 44. | Besides, the living standard of the average Chinese is still not high enough to be able to afford the many different sorts of expensed during long distance travels. |
| 此外，中国人民的生活水平还没有高到足以使普通中国人有钱支付长途旅行的各种开支。
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| 45. | One of the great early writers wrote that: Work is the grand cure of all the maladies and miseries that ever beset mankind. If this is true, then the present situation should make us wonder whether the measure that the average worker is obliged to retire |
| 一位伟大的作家曾写到：工作是医治人间一切病痛和疾苦的万应良药。 如果是这样的话，那么现在的状况应使我们想一想，强迫普通工人在50岁退休是否合理。
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| 46. | To average people, they often tend to live under the illusion that English often means a good opportunity for one's career, is this really the case? |
| 对于一般人来说，他们常常以为掌握英语就意味着一份好的工作，然而这是真的吗？
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| 47. | His income is well below the average . |
| 他的收入大大低于平均水平。
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| 48. | He shows more than average ability in this direction. |
| 他在这方面有高于一般水平的才能。
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| 49. | He has more than average amount of common sense. |
| 他具有超出一般的见地。
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| 50. | Tom's work at school is above [below] the average . |
| 汤姆在校的功课在一般水平之上[之下]。
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