查尔斯对英国女王的这句评价，应该如何理解？

英国女王去世后，查尔斯三世（King Charles III）发表了全国演讲，在演讲中他对母亲的逝世表示哀悼，并高度评价了她一生所做的贡献。很多外媒在报道时引用了查尔斯演讲中的一句话：a promise with destiny kept

这句话出现在演讲的开头部分，上下文语境是：

Throughout her life, Her Majesty the Queen - my beloved Mother - was an inspiration and example to me and to all my family, and we owe her the most heartfelt debt any family can owe to their mother; for her love, affection, guidance, understanding and example. Queen Elizabeth's was a life well lived; a promise with destiny kept and she is mourned most deeply in her passing. That promise of lifelong service I renew to you all today.

其中"a promise with destiny kept"是一个不太好理解的点，这里做一下分析。

整个句子相当于：Queen Elizabeth's was a life well lived; Queen Elizabeth's was a promise with destiny kept，在英语中我们有时候会见到XX’s这种特殊的所有格用法，这其实是一种省略现象。

比如人们有时候将the hairdresser’s salon省略为the hairdresser’s,  my mother's house省略为my mother’s，句子：I’ll go to my mother’s. 相当于：I’ll go to my mother’s house.

上面句子也出现了省略，相当于：Queen Elizabeth's life was a life well lived; Queen Elizabeth's life was a promise with destiny kept.

a promise with destiny kept主干部分是 a promise kept，其中kept是过去分词作后置定语，修饰a promise，即a promise (that was) kept，而with destiny则是介词短语作为后置定语，同样修饰a promise，即句子相当于：Queen Elizabeth's life was a promise (with destiny) kept.

如何理解句子的含义？国外语言学习论坛forum.thefreedictionary.com有老外给出了一个很好的解释：

As Queen, she had a destiny, a future that was understood by her that she was to fulfill. She was the leader, the symbol of her country. She made a promise to lead her country and its people as best she could. She kept her promise to, and with, that destiny.

作为英国女王，伊丽莎白二世有自己独特的使命，而她在一生中努力完成了这一使命，努力履行了对命运的“承诺”。

Queen Elizabeth's was a life well lived; a promise with destiny kept. 因此可以理解为：伊丽莎白的一生是圆满的一生。她完成了女王的使命，履行了对命运的承诺。

值得一提的一点是，在正式演讲场合中，英国皇室可能会使用一些比较正式和古典的表达，而这些表达在现代英语中并不常见，a promise with XX就是这样一个例子。在现代英语中promise作为名词时后面搭配的介词一般是to或者of，很少有promise with的用法。Google Ngram Viewer上面的搜索结果也显示，这一用法在19世纪的时候比较流行，现在已经较少使用。

在遇到这种正式英语场合时我们需要考虑到单词的一些特殊搭配和用法。

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