她有個6歲的女兒。

　　She has a six-year-old daughter.

　　他72歲時去世。

　　He passed on at the age of 72.

　　她比他小四歲。

　　She's his junior by four years.

　　她比他大十歲。

　　She was ten years his senior.

　　她比他小四歲。

　　She's four years his junior.