Have a Merry Christmas.

祝您圣诞愉快!

再给你增加两条:

May everything beautiful and best be condensed into this card. I sincerely

wish you happiness, cheerfulness and success.

愿一切最美好的祝福都能用这张贺卡表达,真诚地祝你幸福、快乐、成功!

Allow me to congratulate you on the arrival of Merry Christmas and to extend to you all my best wishes for your perfect health and lasting prosperity.

圣诞愉快,祝身体健康、事业发达。

I wish you good health and a happy life in the New Year!

Merry Christmas!Wish you happy and health!Good luck for you with the coming year!

Dear Mr/Ms,

Merry Christmas and have a good buiness in the new year.

Best Wishes,

your name

切记少提起工作上的合作,生意什么的,别人会认为你另有企图,虽然我们寄贺卡就为了生意。

仅仅是祝福就好。