elder与older,eldest与oldest的区别?

older 泛指新旧、老幼、年龄的大小关系。而elder 主要用来表示兄弟姐妹的长幼关系。

he is the oldest boy in our classroom.

His eldest son died last year. 最大的儿子去年去世了。

older 既可以做表语也可以做定语，elder通常做定语；

My elder brother is two years older than I.

oldest和eldest则为最高级，不再赘述

older 泛指新旧、老幼、年龄的大小关系。而elder 主要用来表示兄弟姐妹的长幼关系。

he is the oldest boy in our classroom.

His eldest son died last year. 最大的儿子去年去世了。

older 既可以做表语也可以做定语，elder通常做定语；

My elder brother is two years older than I.

E 一般是用于兄弟姐妹之间较大的那个

不能用older