unforgettable experience

基本解释

When I reached the end far too soon, I almost wanted to walk it backwards…it was an unforgettable experience.
结果很快就走到了头，太快了，简直想倒回去重走一遍……真是一次难以忘怀的体验。
But studying there was ultimately a fulfilling and unforgettable experience that broadened his interests and taught him to remain a perpetual student.
但是在英国的求学经历是充实和难忘的，因为在那段时间拓展了他的兴趣，并使他学会要终身学习。
xianguo.com
The stifling, chaotic maze of Dakar might be too much for some, but those who brave the humidity and mosquitoes will walk away with a truly unforgettable experience.
达喀尔的沉闷和混乱也许对有些人来说有点难以忍受，但对那些耐得了潮湿和蚊子的人而言，可是一段难忘的经历。

But studying there was ultimately a fulfilling and unforgettable experience that broadened his interests and taught him to remain a perpetual student.
ECONOMIST: Face value
However, he also knows that the revenue engine of a major league ball club is driven by the local market and the Brewers need to consistently create an affordable and unforgettable experience for the fans.
FORBES: Great Expectations In The Brew City