He argued that the uninsured represent a "hidden tax", whereas new "health insurance exchanges" would bolster competition.

他认为，未受保的人群代表的是“潜在税源”，而新型的“医保交易制度”将能促进竞争。

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In addition to more hidden locations exchanges, the exchanges also difficult to let the world know.

除了交往的地点较为隐秘外，交流方式也很难让世人所知。

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Since the exchanges have hidden orders, he hopes future regulations will address those venues as well as fair access to dark pools.

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