Travel is possible, maybe even desirable, and we can move beyond the warm savannahs of Africa and survive, perhaps even flourish, in a colder climate.

现在长途旅行已经可能了，也许甚至是更可取的，我们可以超越这温暖的非洲大草原，在更寒冷的气候里存活，甚至繁衍生息。

youdao

One is going to be colder than the other, maybe.

可能有一种会降得更多。

麻省理工公开课 - 热力学与动力学课程节选