今天，由于技术的进步以及贸易壁垒的解除，信息和观念在全球的流通比以往更加迅速和自由。

Today, because of advances in technology and falling trade barriers, information and ideas circle the globe faster and more freely than ever.

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宇宙学家使用“卡尔达舍夫等级”来预测未来的技术进步以及外星文明。

Cosmologists use this Kardashev Scale to predict the technical advancement of future and alien civilizations.

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别忘了，这也是费内龙的理论；他把街道、工厂以及所有的进步都归功于警察。

Remember that this was also the theory of Fenelon; he described the streets, factories, and all progress as being due to the police.

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For example, how cancer diagnosis has improved, what are some of the causes of cancer in the environment around us and how can we protect ourselves from it, and we'll talk about treatments for it as well.

例如癌症的诊断手段是如何进步的,我们周围环境中有哪些致癌因素,以及我们如何保护自己免受其害,我们也会讨论到癌症的治疗手段

耶鲁公开课 - 生物医学工程探索课程节选