每个硬币都有两面。

Each coin has two sides.

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最重要的道理是，失败和成功是同一枚硬币的两面。

The most important lesson is that failure and success are two sides of the same coin.

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但从某种意义来说，这两个问题是一枚硬币的两面。

But in a sense, both questions are opposite sides of the same coin.

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They are two sides of a same coin in that sense.

就像是一枚硬币的两面。

普林斯顿公开课 - 人性课程节选