two-year-old 与two years old有何区别这题应该怎么选，说明理由。The river through our city,which is about______,is clean again.A.6000 metres long B.6000-metre-long

two years old与two-year-old的用法区别 two - year - old two - years -old two year old two years old 哪两个对》 为什么要说the/a two-year-old boy 不能说two years old boy He died two years ago,l____his five-year old daughter The little dog ____ two years old this year two( )twins. A. nine-years-old B. nine-year-old C. nine years old D. nine year old a two-year-old girl和a girl of two哪个对 Shi is a two-years-old girl 还是shi is a two-year girl a two－year －old boy two－years－old two years old 这些类似的都怎么区分要有实际例子和意思 请问12-year old/ 12-years-old/ 12-year-old/ 12 years old这四项有什么不同?还有就是two-weeks holiday two weeks'holidays two-week holiday two-weeks'holiday 有什么不同?这几个概念有点混淆 为什么two-year-old的year不加S而two-hundred-words的word要加S 表示年龄的英文如果说年龄.是 two hundred years old 还是 two hundred year old 呢.为什么. I have two brothers . they are 13 ( ) this yearA years old B year oldC years' old D year's old two editions a year I am thirteen years old this year.(用two years ago代替this year) two-year-old 与two years old有何区别这题应该怎么选，说明理由。The river through our city,which is about______,is clean again.A.6000 metres long B.6000-metre-long more和much都是程度副词吗?I have a____brother.He is___younger than me.A.two-year-old;more B.two-year-old;much My baby is only ____.A.two year and two month old B.second year and second month youngC.two years and two months old D.second years and second months young