以下是一些傷感的英文短句：
1. My heart aches for the past that cannot be recalled.
2. The past is gone, and it's better to focus on the present.
3. I miss you, but I have to pretend that I don't.
4. I will always remember the love, but let it go.
5. Sometimes, it's better to say nothing than to say too much.
6. I hope that our memories will be like a beautiful dream.
7. Life is like a box of chocolates, you never know what you're gonna get.
8. It's hard to forget the past, but we have to move on.
9. Time heals all wounds, but it also brings new memories.
10. The best way to cry is alone in the dark, with no one to see your tears.
希望這些句子能夠滿足您的需求。