这种因为长着一根长牙而被称为“海洋独角兽”的北冰洋哺乳动物，同时还传输冬季海水表面的温度，这层海水将海面冰层和下面温暖的海水隔离开来。
The Arctic mammals, known as "sea unicorns" thanks to their single long tusks, also transmitted measurements for the winter layer of surface water that shields sea ice from the warmer waters below.
约翰洛根（John Logan ）和布莱恩斯特尔茨（Brian Stults ）发明了一个相异指数，为了消除种族隔离，一组人必须搬家，与陌生人为邻，然后用相异指数来确定这组人中黑人邻居的百分比- 想一下公共校车的例子。
John Logan and Brian Stults created a dissimilarity index, which identifies the percentage of one group that would have to move to a different neighborhood to eliminate segregation -- think busing.
还有，就是那根最重要的”线“，那根把你和与你一起工作的人隔离开来的”线“，和熟知你的同事做朋友，对你毫无好处。
And then there is the most important line. The line separating you from the people you work with. It doesn't help to get too familiar to make friends.
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