这些是纪录片《重生》的开头几分钟。 该片讲述了五位生活被9·11事件搅得支离破碎的当事人几年来的历程。

These are the first few moments of “Rebirth,” a documentary film about the years-long journey of five people whose lives were shattered by the events of 9/11.

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负鼠在30摄氏度以上的环境中，活不过五个小时。

The possum cannot survive much more than five hours at temperatures over 30C.

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据联合国开发计划署的编撰人员介绍，在其中的10个国家，五分之二的儿童活不到40岁。

In 10 of these countries, two children in five will not reach the age of 40, said the compilers at the UN Development Program.

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But we might then wonder, for every person who gets less than the average amount of life-- suppose we take the median, take the amount of life that's exactly, 50 percent of the people get more, 50 percent of the people get less.

但是接着我们可能会想，对于所有活得比平均寿命要短的人-,假设我们取中间数，相对于平均寿命，刚好五成的人活得更长，五成的人活得更短。

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