有些鸟飞得很远，其中包括一种从世界最北边一直飞到遥远的南方的鸟。

Some fly very long distances, including one kind of bird that flies from the remote north of the world all the way to the distant south.

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在2018年11月26日发布的一段网络视频中，南方科技大学研究员贺建奎表示，他帮助培育了世界上第一批基因编辑婴儿。

In an online video posted on Nov. 26, 2018, He Jiankui, a researcher at the Southern University of Science and Technology, said that he had helped to make the world's first genetically edited babies.

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马利克则认为，尽管全世界都在关注南方，“但是在北方也有深刻的种族鸿沟。”

Malik, who says, despite international focus on the south, "there are real ethnic fissures in the north".

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Now I'll pick up with this next Tuesday; it's a perfect transition into the pro-slavery argument and southern worldview. Thank you.

下星期二我会来听听你们的想法,我想它是亲奴制的发展和,南方世界观形成的重要因素,谢谢

耶鲁公开课 - 美国内战与重建课程节选

Now, in the South what developed and let's define it at least quickly what developed was one of the world's handful of true slave societies.

当时的南方变成了什么样,至少我们很快就能得出结论,当时的南方变成了世界历史上,为数不多的几个真正的奴隶社会之一

耶鲁公开课 - 美国内战与重建课程节选