1944, in geopolitical sense of "nation with great interest and ability to exert force in worldwide theaters of conflict," from super- + power (n.). The word itself is attested in physical (electrical power) senses from 1922.
权威例句
1. The current sole superpower is far from being a disinterested observer.
当前唯一的超级大国远不是一个公正的旁观者。
2. He emphasised the wider issue of superpower cooperation.
他强调了超级大国合作这一更重要的议题。
3. The allies would fear that they were pawns in a superpower condominium.
这个联盟担心他们会成为超级大国共管的牺牲品.
4. It's a well-tried tactic to play down public expectations in advance of a superpower summit.
在超级大国的峰会之前降低公众的期望值是个屡试不爽的策略。
5. The United States could claim to be both a military and an economic superpower.