裝飾聖誕樹的英文：Christmas tree decoration。
例句：
1、孩子們小的時候，她喜歡裝飾聖誕樹。
She'd enjoyed dressing the tree when the children were little.
2、他買了模樣新奇的巧克力來裝飾聖誕樹。
He bought chocolate novelties to decorate the Christmas tree.
3、凱伊：我們今晚要裝飾聖誕樹啊。
Kate : We are trimming the tree tonight.
4、人們裝飾聖誕樹和他們的家。
People decorate Christmas trees and their homes.
5、我們用彩色燈裝飾聖誕樹。
We decorated the Christmas tree with coloured lights.
6、我們用玻璃球裝飾聖誕樹。
We decorated the Christmas tree with glass balls.