岁数用英文怎么说来着

岁数用英语是 "age." 来源于拉丁语 "aetas"。

例句：

What is your age? 你几岁？
She is 30 years old. 她三十岁。
The age of the building is unknown. 这座建筑物的年龄未知。

注意：在美式英语中，"years old" 常被简写为 "years"。例如：She is 30 years.