题目内容
In a ( ) system, like Switzerland or the US, individual states within a country make their own laws,so the power of the central government is limited.
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In a country of ( ), elections are usually held every few years.
I prefer to wait for change patiently instead of losing my ( ) for myself by taking part in violent action.
Editors need to be careful not to publish photos that may ( )people.
We expect the news to be available quickly as well as ( )
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