Abel problem

例句：

1. 1.The Abel problem is a classic example of the paradox of choice.
   艾贝尔问题是选择悖论的经典例子。
2. 2.The Abel problem has been studied extensively in economics and philosophy.
   艾贝尔问题在经济学和哲学中被广泛研究。
3. 3.The Abel problem is often used as a metaphor for the difficulty of making difficult decisions.
   艾贝尔问题常常被用作比喻，说明做出困难决策的困难。