哈利波特与魔法石 第一句那 of number four,Privet Driver, 这里面为什么是用of number

特意翻了一下原版,原文是mr. and mrs. dursley, of number four, privet drive, were proud to say.是指：住在女贞路四号的德思礼先生和德思礼太太,of number four, privet drive是个插入语,句子主干是mr. and mrs dursley were proud to say.这里你可以把of理解成".的."