问题 a boy of a girl怎么分析和理解

a boy of a girl这种结构我是知道什么含义的，表示一个男孩子气的女孩（假小子）。a boy相当于形容词修饰a girl的。但为什么语法书上说这种结构，of短语(of a girl) 与前面的名词或名词短语(a boy) 构成同位关系呢？明明是前面修饰后...

问题 his empire at an end 做什么成份？

Napoleon abdicated and went into exile, his empire at an end. 拿破仑退位并被流放，他的帝国寿终正寝。请问老师，his empire at an end 是什么短语在句子中做什么成份？

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