Zhang Xiaoxian once said: "There are no dry tears and no regrets. Those who leave don't know that it is a farewell. Leaving with a smile is the happiest kind of farewell. All the reluctance is reserved for the one who is waiting." One day is coming, after parting, will we meet again tomorrow? Tomorrow may be the end of the world. I won't be sad, because although the meteor has passed away, it has brought me the best hope. I hope to meet a shooting star again, and then I will convey my truest thoughts to it. Don't be sad, because I have been waiting for you.