We had a happy holiday.更加地符合英文表达的话可以说：We had a great time during the holiday break.如果要表达更加具体的内容，可以通过增加细节来描述假期中的活动，比如：We had a great time during the holiday break. We enjoyed hiking in the mountains, trying out new restaurants, seeing movies, and spending time with family and friends.
