Merry Christmas Day ------Thinks givingday分别是什么意思英语不懂啊

Merry Christmas和Merry Christmas day区别? Merry christmas Day 中文意思是什么 merry christmas后面可以加day吗 merry Christmas之后为什么不能加day 求一首歌,歌词里有一段是merry merry Christmas,merry merry Christmas,merry merry Christmas 什么day,其余就不知道了,有不有人知道歌名的? Merry Christmas后面啊要加dayMerry Christmas后面啊要加day Merry Christmas Merry Christmas merry christmas Merry Christmas! MERRY CHRISTMAS Merry Christmas! merry christmas! Merry christmas! merry christmas! Merry Christmas! merry christmas, merry christmas