• It gradually expanded in size, reaching to the Southern Ural Mountains and the Caspian Sea, and emerging as a dynastic state.

    其领土逐渐扩大,延伸乌拉尔山脉南端和里海,并发展成为王朝国家

    耶鲁公开课 - 欧洲文明课程节选

  • The northern states by the Antebellum Period 1820s,1830s,1840s-- was beginning to sort of hurtle toward a different future than what that slave society was perhaps--no, not really slowly it too was hurtling toward a certain future.

    北方在战前,也就是19世纪2040年代,就急速开始朝着,和奴隶社会完全不同的方向发展,但是南方奴隶社会的发展得也不是很慢,它也在飞驰向一个确定的未来

    耶鲁公开课 - 美国内战与重建课程节选

  • I want to say a little bit about the cost of vaccines because this is a part of what makes it difficult to accomplish what's usually our goal in a vaccine development, which is deliver the vaccine to every population in the world.

    我想谈谈关于疫苗的成本,因为这是令我们的疫苗发展目标,无法得以实现的困难之一,这个目标就是将疫苗送世界上每一个人

    耶鲁公开课 - 生物医学工程探索课程节选

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