单极世界中，你认为人们拥有足够的自由和渠道去发表意见吗?。
Under unipolarity, do you believe that people have enough freedom and channels to express their opinion?
第二种变化在于，美国所扮演的单极世界中唯一一极的角色正在不可避免地走向终结。
The second is that America's role as the single pole of a unipolar world is inevitably coming to an end.
对磁单极进行了讨论，说明在实物世界中磁单极子是不存在的，设想在真空世界中磁单极子是存在的。
This paper discusses the existence of the magnetic monopole, the conclusion of which is that the magnetic monopole does not exist in the material world but exists in the hypothetical vacuum world.
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