n.超级大国( superpower的名词复数 );
例句:
Both superpowers shared the same instinct for self-preservation.
两个超级大国都有 自我 保护的本能.
The superpowers are unlikely to disarm completely.
超级大国不太可能彻底裁军.
The superpowers are putting the arms race into reverse.
超级大国正在把军备竞赛转换成相继裁军.