When you are " on the horns of a dilemma" no matter which horn you choose, something bad will happen.

当你身处左右为难的境地(on the horns of a dilemma)，不管你怎么选择，都将有坏事情发生。

There is still another expression that describes a situation with only bad choices -- being " on the horns of a dilemma."

还有一个表达on the horns of a dilemma，表示只有坏的选择的境地。

I'm on the horns of a dilemma. Can you imagine me, Sheldon Cooper, at the North Pole? -Easy peasy, I'm doing it right now.

真叫人难以取舍。你能想象我，谢尔顿? 库珀在北极吗？小菜一碟，我现在就想着呢。