Common sense tells us that damaging a thing as old as Earth is somewhat easier to imagine than it is to accomplish - like invading Russia.

常识告诉我们，破坏像地球这样古老的东西是想象比实际做到要来得容易的—就像入侵俄罗斯一样。

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Required class attendance, like an old custom, is so common in in Chinese colleges and universities that many teachers and even students themselves simply assume it is a good thing.

上课点名制，如同一种古老习俗，在中国的大学里非常普遍，许多教师甚至学生自己都认为这种做法是对的。

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Based on discussions I've listened to from atheists, the most common thing that I hear is essentially a type of "herd" mentality or something about it being based upon a sort of "communal" benefit.

根据我听取的无神论者的讨论，最常听到的基本上是一种公共心态或是建立在一种公共利益基础上的事情。

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To hear an oriole sing May be a common thing Or only a divine It is not the bird Who sings the same unheard, As unto crowd.

VOA: special.2010.07.18

Now for now, its hard to argue that this is a good thing but it's a common thing.

现在，不好争论这是一个好事情,但这是一个通常的事情。

哈佛公开课 - 计算机科学课程节选

It's a course which is absolutely fascinating in all sorts of ways, and it has one very important thing in common with literary theory: that is to say, literary criticism is, too, perpetually concerned with the definition of literature.

这门课在各方面都很棒，而且它与文学理论有一个重要的相似之处：,即文学评论也永远会关注，文学的定义问题。

耶鲁公开课 - 文学理论导论课程节选

Washington (CNN) -- Mitt Romney's campaign can now point to at least one thing it has in common with Ronald Reagan's -- a musical act is asking it to stop using its music at campaign stops.

CNN: Campaigns rock at their own risk