one or two mistake用复数么?

one or two mistake用复数么? one or two in one or two one or two one year or two one or two year 的意思 是one or two year还是one or two years in one or two words a year or two 还是one year or two 英语翻译one of two or three dozen in one or two 如题 in one or two words的中文 in one or two words 的中文 ln one or two words用中文翻译 有没有：one day or two one　or　two加名词单数还是复数,two　or　one there is one or two child 还是there is one or two children?为什么 there is one or two students?还是there are one or two students?为什么 Many will study in our school for______A.a or two year B.one or two year C.a year or two D.one years or two