Children two and a half to three years old remember experiences that occurred In their first year, and eleven month olds remember some events a year later.
这里的 two and a half to three years old 是 children 的后置定语 这个我懂得,,, 可是 我知道 three-year-old才是形容词 three years old 是名词短语啊,,,, 为什么 two and a half to three years old可以做 children的后置定语呢?
还有帮我解释下 eleven month olds 是怎么弄得