ADJ-GRADED
难忘的
If you describe something as unforgettable, you mean that it is, for example, extremely beautiful, enjoyable, or unusual, so that you remember it for a long time. You can also refer to extremely unpleasant things as unforgettable .
例句
A visit to the Museum is an unforgettable experience...
参观博物馆是一段令人难忘的经历。
A bright shooting star, or meteor, is an unforgettable sight.
明亮的流星，或者说陨石，是番难忘的景象。