Every coin has two sides. My bad luck has unexpectedly turned into a good thing.

凡事都有两面性。我的厄运意外地变成了一件好事。

youdao

For every day that passes and you don’t indulge in your bad habit, drop a coin in a jar.

每过去一天，并且当天你没有放任自己的坏习惯，就将一枚硬币投入一个罐子。

youdao

The other side of the coin is just as bad.

FORBES: Magazine Article

To an unusual degree what is good and bad about both Ryanair and Mr O'Leary are opposite sides of the same coin.

ECONOMIST: Aviation