Luke指出，如果对于一个属性的问题得到的答案没有差别，那就没有得到任何对属性排序有帮助的信息，你应该对这个属性做出变更。
Luke notes that if the answers are all the same for one attribute and therefore you aren’t getting any ranking information from that attribute you should go back and change that attribute.
如果你思考你爱不爱一个人，却没有得到答案。其实当你爱上一个人只有你知道。
If you have to think about whether you love someone or not then the answer is no. When you love someone you just know.
然而，我一直没有得到一个清晰的答案。
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