one year 可以说成 a year

one year 可以说成 a year a year 和one year的区别 a four-year-old boy可以说成a four-year old boy 请问英文的Happy New Year.可以说成Happy a New year.有这种说法吗? 1岁可以说age 还是一定要one year old a year /one year那个是标准的啊?谢谢 a year or two 还是one year or two one year later 跟a year later有什么区别 a three－year－old boy,可以说成a three years old many　thanks! on a one-year program是什么意思? Tim is ____boy.He can say a few words.A.an one-year-old B.a one-year-old C.an one-year oldD.a one-year old a one-year program什么意思 One （ ）year is a century contract:one year with a possibility to at a year at one year at a time at one time 这几组词怎么区分 for one year=since one year ago=如上,还等于什么（）is a year() One Year Ago 歌词 是a one-year-old boy还是an one-year-old boy