an event or experience that causes disappointment because it is less exciting than was expected or because it happens immediately after a much more interesting or exciting event

When you really look forward to something it's often an anticlimax when it actually happens. 你期盼的事情一旦成真时，你却常常会感到并不如想象的那样令人兴奋。

Coming home after a trip somewhere is always a bit of an anticlimax. 在一个地方旅游结束回家时，总会感到有些失落。

Even when you win a match there's often a sense of anticlimax - you always feel you could have played better. 即使在赢了比赛的时候，你也常会有一种不尽人意的感觉——总是觉得本来可以打得更好一些。