Its a snow day和Its a snowy day有什么区别?

one day和a day什么区别 是in a snoWY day还是on a snoWY day on a snowy day还是in a snowy day It’s____and cold all day A snow B snowy C cloud D wind snow,snowy,snows有什么区别 its和it's有什么区别 Its 和It's有什么区别? 有首很好听的歌是个小女生唱的英文有句I may love its a beautifui day 然后是its a be day after day 和 day by day 有什么区别 What a happy day?和How a happy day?有什么区别? 英语翻译What a cold,snowy day snow和snowy的区别