比某人小几岁 一个地道的英语表达 比某人大几岁 英语说法

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如果你比某人小几岁，可能会立刻想到 than 用作比较级吧， 是的，很不错。但是有个另外的地道的英语表达：junior

be...years sb's 'junior | be sb's junior (by...)
   to be younger than sb, by the number of years mentioned
   小某人…岁；比某人小…岁:
   She's five years his junior.
   她比他小四岁。
   She's his junior by five years.
   她比他小四岁。


沈从文的《湘行散记》有句话：
At the same time my little brother, four years my junior, had been so well cared for by his Miao nurse that he was a remarkably strong child, behaved with impressive dignity and coolness and showed great self-respect; so when I disappointed the family, they lavished their care on him.


当然，我们也应想到，反过来，比某人大几岁的一个类似的英语说法：
senior 的一个意思：
a person who is older than sb else
   较…年长的人:
   She was ten years his senior.
   她比他大十岁。
   My brother is my senior by two years.
   我哥哥比我大两岁。