✔ 最佳答案
我從來沒有令人失望過:
I have never disappointed anyone.
In this sentence, "disappointed" is used as a "transitive verb", so "I" is the cause of the disappointment, and "anyone" is the one who is disappointed.
* "I have never failed anyone" and "I have never let anyone down" also have similar meaning, but "failed" and "let down" can mean more than just "disappointment".
I have never been so disappointed:
我從來沒有這麼失望過
In this sentence, "disappointed" is used as an "adjective", to describe "I", who is the one feeling the disappointment..