From the heart,
John and I have been friends for a long time. We have shared many happy memories and have supported each other through difficult times. This friendship has been建立在深厚的感情基础上， and it is with a deep sense of gratitude that I must say goodbye.
As we have grown together, we have also learned the importance of true friendship. This friendship is not based on convenience or time-saving techniques, but rather on the sharing of values, mutual respect, and the ability to support one another in good times and bad.
In this regard, I must also thank you for your unwavering support and friendship during my time of need. Your kindness and generosity have truly touched my heart, and I am grateful for all that you have done for me.
As we part ways, I am left with a feeling of warmth and happiness. I will always cherish the memories we have shared and the deep bond we have created. I hope to continue to maintain our friendship in the future, and I look forward to our continued cooperation and friendship.
In conclusion, I must say that I am truly sorry for any inconvenience or delay caused by my leaving. Your friendship has been a valuable part of my life, and I am grateful for all that you have done for me. I hope to stay in touch and to continue to have a positive impact on your life in the future.
With deepest respect and gratitude,
John
