adj.反事实的（指在不同条件下有可能发生但违反现存事实的）
Predicting the future is a form of forward counterfactual thinking.
预测未来是一种事前反事实思考.
The last chapter clarified definition. logic character and truth definition of counterfactual conditionals.
第四章着重评析了反事实条件句的定义、逻辑性质及真值定义.
Not only is this counterfactual approach utterly unverifiable ; it is also an ideal target for gaming.
这种不切实际的做法不仅根本无从证实,而且是弄虚作假的理想对象.