1) He's my senior by three years.
他比我大三岁。
2) He is three years junior to me.
他比我小三岁。
3) He is three years senior to me.
他比我大3岁。
4) He is senior to me by two years.
他比我大两岁。
5) He is my elder by five years.
他比我大五岁。
6) He is ten years senior to me
他比我大十岁.
参考词条