unforgettable

例句：

1. She sat up late that night to write a detailed account of the unforgettable moment.
   這天夜間，她遲遲沒睡，詳細地寫下這難忘時刻的情景。
2. An unforgettable experience.
   一個不會被遺忘的經驗
3. It's an unforgettable experience.
   這是一次難忘的經歷。

英文解釋：

形容詞 unforgettable:

1. impossible to forget

詞型變化：