A：Merry Christmas, Mr. Wang. I would like to give you the book I specially chose as my appreciation for your sincere help to me in the past few days.

王先生，圣诞快乐。我想要把这本我精心挑选的书送给您，以感谢在过去的岁月中您对我真挚的帮助。

B：Thanks, Mr. White. That's very kind of you.

谢谢您，怀特先生。您真是太好了。

A：I hope it will be of some use to you.

但愿这本书对您有些用。

B：I am sure it will. It'll be of great help in carrying on the work I have done so far.

肯定会有用，它对我目前为止所进行的工作会有很大帮助。

A：That will be great.

那真是太好了。