Yes, I have sent thank you cards on several occasions. For instance, I sent one to my teacher after graduation to express my gratitude for their guidance. Additionally, sending thank you cards is a tradition in my family, and I enjoy keeping it alive by sending them to friends and family during holidays or after receiving gifts.
はい、私は何度か感謝のカードを送ったことがあります。例えば、卒業後に先生に感謝の気持ちを伝えるために一枚送りました。また、感謝のカードを送ることは私の家族の伝統であり、休日や贈り物を受け取った後に友人や家族にカードを送ってこの伝統を続けるのを楽しんでいます。