1.fallacy 谬论
例句：

I think they made four fallacies.
我认为他们陷入了四个误区中。

2.feasibility 可行性
例句：

This policy may be of infeasibility.
这个政策好像不可行。
（形容词）feasible
a feasible plan
可行性计划

3.self-contradictory自相矛盾的
例句：

Firstly, they have made a self-contradictory in taking about the public servant.
首先，他们在讨论公务员问题时是自相矛盾的。
His arguments were somewhat self-contradictory; the children argued because one slice of cake was slightly larger than the other.
他的意见有点自我矛盾；孩子们吵了起来，因为一块蛋糕比另一块稍微大些。