1.此本书送给我亲爱的姐姐.
This book is for my dearest(最最亲爱的) elder sister.
This book is sent to my dear sister.
This book is presented to my dear sister as a gift.
This book is gifted to my dear sister.
2.愿你度过一个快乐的圣诞节.
Wish you to enjoy a happy Christmas.
I hope you to have/spend(2选1) a pleasant Christmas Day.