[译] 她在她班里年纪最大。
[误] She is elder than any other student in her class.

[正] She is older than any other student in her class.
[注] old 的比较级有两个，一个是 older，一个是 elder，但 elder 不能和 than 连用，elder 用来指兄弟姐妹之间的排行先后。如：His elder brother works in a hospital. 他哥哥在医院工作。