建议参考：Merry Christmasint.圣诞快乐！例句：

1.He sent every member of staff a mail-merge letter wishing them a merry Christmas!他给所有员工群发了一封信，祝大家圣诞快乐！

2.I'm afraid he isn't having such a merry Christmas as we are.我想他圣诞节恐怕过得没有我们这么快乐呢。