blurred lines

基本解释

The study design may also have blurred the lines between real and fake acupuncture, muting the effects of the real thing.
这项研究设计也可能模糊了真假针灸之间的界限，掩盖了真针灸的效果。
The coalition has inherited voters willing (at least in England) to tolerate blurred lines between the private and public sectors.
保守联盟已继承了选民意愿向----容忍私立部门和公立部门界限不清的状态（至少在英国如此）。
In doing so, it has deliberately blurred the lines between making things and offering services.
为了这种转变，劳斯莱斯公司刻意模糊了制造产品和提供服务之间的界限。

Here, everyone talks to everybody else, and the class lines are very blurred,
在这里，每一个人都会相互交流，这里的阶层意识很模糊。
美国贫富差距？ - SpeakingMax英语口语达人