"Letdown" trong câu này có nghĩa là gì?

Native speaker’s answer
Rebecca
Here, "letdown" means the descent of an aircraft when it's close to landing! It can also mean disappointment or the feeling of disappointment. It's fairly common to say, especially when expressing your feelings or remarking on something. Ex: The show was a complete letdown. Ex: We're going to begin the letdown in two minutes. Ex: I feel let down by my friends.