Nothing in the world is more exciting than a moment of sudden discovery or invention, and many more people are capable of experiencing such moments than is sometimes thought.

这个世界上没有什么比突然之间发现了一个新事物或者发明了一个新东西更让人兴奋了，很多人都有过这种激动的时刻——有过这种体验的人，比大家所认为的要多得多。

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The Rat hummed a tune, and the Mole recollected that animal-etiquette forbade any sort of comment on the sudden disappearance of one's friends at any moment, for any reason or no reason whatever.

河鼠哼起了一支小曲儿。鼹鼠想起，按动物界的规矩，要是你的朋友突然离去，不管有理由还是没理由，你都不该随便议论。

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Among them are "bucket list" (popularized by the eponymous movie), "gassed" (a slang word meaning drained of energy), and Oprah Winfrey's signature phrase, "aha moment" (a moment of sudden realization, inspiration, insight, recognition, or comprehension).

CNN: Adding 'f-bomb' to dictionary makes for an 'aha moment'