The moral of that is—birds of a feather flock together.

这个故事的寓意是——物以类聚，人以群分。

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You've probably heard the phrase "Birds of a feather flock together" and that's true when it comes to romance.

你们可能听过一个成语“物以类聚，人以群分”，恋爱就是这样。

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The way they swarm or flock together does not usually get good press coverage either: marching like worker ants might be a common simile for city commuters, but it's a damning, not positive, image.

它们蜂拥或聚集在一起的方式通常不会得到媒体的正面报道：城市的通勤者往往会被比喻成像工蚁一样行进，但这种比喻是一个不佳的、负面的形象。

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Have you ever observed that birds of a feather flock together?

VOA: special.2010.06.13

You've probably heard the phrase "Birds of a feather flock together" and that's true when it comes to romance.

你们可能听过一个成语,物以类聚，人以群分“,恋爱还真是这样。

耶鲁公开课 - 心理学导论课程节选

Birds of a feather may flock together but opposites don't really attract each other.

人以群分,反差太大，不容易吸引对方。

耶鲁公开课 - 心理学导论课程节选

Birds of a feather do more than flock together: they cruise for action together, too.

ECONOMIST: Team players

"The Rydberg electron resembles a sheepdog that keeps its flock together by roaming speedily to the outermost periphery of the flock, and nudging back towards the centre any member that might begin to drift away, " said Professor Greene.

BBC: World first for strange molecule

As the old saying goes, birds of a feather flock together, and Mitt Romney picked -- his pick of Paul Ryan tells you something about his own economic beliefs -- ones we knew, but this solidifies it and crystallizes it even more.

WHITEHOUSE: The White House