难忘的

• memorable
• indelible
• unforgettable
• impressive

例句

1. 这是一次难忘的经历。
   It's an unforgettable experience.
2. 那是个难忘的仪式。
   It's an impressive ceremony.
3. 对我来说那是一次难忘的经历。
   It was a memorable experience for me.
4. 我们去年有一次难忘的旅行。
   We had a memorable trip last year.