圣诞老人的回信英文译为Reply from santa claus.或是A letter from Santa Claus.
双语例句:Since 1954, thousands of volunteers in the Alaska town of North Pole have run the tradition of replying to letters addressed "Santa Claus, The North Pole".
北极"是美国阿拉斯加州的一个小镇,自1954年起,每年有数千名"圣诞老人行动"志愿者为写给"北极·圣诞老人"的人回信。
Santa writes back, Dear Jeremy, you asked for two very expensive presents and Santa can only do so much.