adj.1岁的
How old is John? He is one year old. 约翰几岁？他一岁。
But what will you expect from a one year old baby? 你还要奢求仅一岁宝宝哪一些?
She could reckon from 1 to 100 when she was more than one year old. 她一岁多时就能从一数到一百。
Well did you ever! A child of one year old can talk! 你听说过吗?一岁的小孩说话！
A Study on Wood Properties of One Year old Poplar Clone. 四个杨树无性系苗期能源林相关特性的研究。
