圣诞节快乐的英语是Merry Christmas。

1、例句：With best wishes for a merry Christmas and a happy new year!

翻译：恭祝圣诞，并贺新禧！

2、例句：Wish you and your mother have a merry Christmas and a happy new year.

翻译：祝你和你的母亲有一个愉快的圣诞节及新年快乐。

3、例句：They sang and danced merrily and had a merry Christmas.

翻译：他们欢快地唱歌跳舞，度过了一个欢乐的圣诞节。

merry是形容词，意思是快乐的，愉快的，嬉戏作乐的。

1、例句：A merry heart has a continual feast.

翻译：一颗愉快的心会享受到接连不断的节日。

2、例句：Merry is he that has nought to lose.

翻译：人无所失，不亦乐乎。