1. We have disrespected and disregarded old women, and then dismissed them as uninteresting.
    我们不尊重老年妇女，漠视她们，然后说她们乏味而排斥她们。

2. And found our then prevailing primitive state completely uninteresting to their own advanced knowledge.
    并且发现我们地球汉时普遍存在着的原始状态同他们的先进的知识相比是索然无味的。

3. Since no one wants to do the dirty, uninteresting factory-line work any more, we decide not to.
    由于没人再愿意在又脏又单调乏味的工厂生产线上干活，我们就决定不干了。