one days or two days,one days or two,one or two day,one and

one days or two days,one days or two,one or two day,one and "an or two days""one day or two""one or two days""one and tw a day or two,one or two days 后面的动词分别用单数还是复数? 问下用英文说“一天或两天”咋说?是“a day or two”,“a day or two days”,“one day one or two in one or two 歌词：“One day Two days Three days”是什么歌? one or two days作主语时,谓语用单数还是复数 有没有：one day or two 是one or two year还是one or two years one year or two one or two year 的意思 Four and two is one or zero?