81. 电视，这项从迅速变化和成长为标志的最普及和最有影响力的现代技术，正在步入一个新时代，一个极为成熟和多样化的时代，这将重塑我们的生活和世界。
Television the most pervasive and persuasive of modern technologies, marked by rapid change and growth, is moving into a new era, an era of extraordinary sophistication and versatility, which promises to reshape our lives and our world.

32. 科学家曾相信：氙气是不能形成化合物的。
That xenon could not FORM chemical compounds was once believed by scientists.

28. Elizabeth Blackwell，美国第一个女医生，创建了员工一直为女性纽约诊所。
Elizabeth Blackwell, the first woman medical doctor in the United States, founded the New York Infirmary, an institution that has always had a completely female medical staff.

91. 美国西部的不毛之地正成为玩耍的地方，对越来越多拥有摩托车或越野单车类车辆的，喜欢放纵于爬坡比赛或开辟新的沙漠通道的寻欢作乐者具有不断增长的吸引力。
Arid regions in the southwestern United States have become increasingly inviting playgrounds for the growing number of recreation seekers who own vehicles such as motorcycles or powered trail bikes and indulge in hill-climbing contests or in caving new trails in the desert.

55. 优化历史是由一连串的迷人事件组成，其源头大概可以上溯到最早的图画。
The history of painting is a fascinating chain of events that probably began with the very first pictures ever made.

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9. 诽谤和流言的区别在于前者是书面的，而后者是口头的。
The difference between libel and slander is that libel is printed while slander is spoken.

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15. 受当代灌溉(技术设施)之赐，农作物在原来只有仙人掌和荞属科植物才能生存的地方旺盛的生长。
Thanks to modern irrigation, crops now grow abundantly inareas where once nothing but cacti and sagebrush could live.

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24. 大多数物质遇冷收缩，所以他们的密度在固态时高于液态。
Most substance contract when they freeze so that the density of a substance's solid is higher than the density of its liquid.

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81. 电视，这项从迅速变化和成长为标志的最普及和最有影响力的现代技术，正在步入一个新时代，一个极为成熟和多样化的时代，这将重塑我们的生活和世界。
Television the most pervasive and persuasive of modern technologies, marked by rapid change and growth, is moving into a new era, an era of extraordinary sophistication and versatility, which promises to reshape our lives and our world.

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