Positively,what they did there was bring together the best minds bring them together with a mission of saving the free world.

积极地说，他们汇集了最优秀的人才,联合他们，共同拯救自由世界。

哈佛公开课 - 幸福课课程节选

They will be made available free to the public via the internet, so this is a way of allowing the world to benefit from what we all do at Yale.

它们会通过互联网向公众免费开放，这样全世界的人都能从耶鲁的课程中有所收获,我们要做的。

耶鲁公开课 - 1945年后的美国小说课程节选

There were no reported cases after that, and so by the late '70s, the world was certified sort of free of smallpox worldwide.

在那之后就再也没有过报告,到七十年代晚些时候,已经确认世界各国都摆脱了天花

耶鲁公开课 - 生物医学工程探索课程节选