因为它是由各个具有权威的主权国家的同意或共同意志。
Because it is different from the authority of a sovereign state with the consent or common will.
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共同
common; joint; shared; mutual; collective; communal; united; concerted; jointly; co-; in common
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意志
will; spirit; purpose; willpower; determination; volition; mettle; pluck; intention; resolve; backbone

中英释义: