In 2010, I was in Austin, and on Christmas Eve, I received a call from an old friend. He asked me, "Cadbury, what do you want for Christmas?" I said, "I want a piano and a pair of dancing shoes." After a few pleasantries, I hung up the phone in a hurry. The climate in Austria is warm and it rarely snows, but I pray that there will be a heavy snowfall this year. I vaguely remember the last time I made a snowman in Suzhou. Unconsciously we have been separated for a long time. We went to the city of our dreams and sealed the memory of this city. I welcomed the arrival of Christmas Eve in anticipation, and thought about the scene of meeting him countless times. If it really came, I would still be extremely nervous. But in fact, he did not come. I did not wait for him for a long time in the future, as if he and I had never crossed paths. During that time, I was like crazy, guarding the mailbox every day, I was afraid that I would miss something, looking through the photos of the past, it seemed that time was frozen at that moment.