upset 沮丧的,心烦的,烦乱的
depressed 消沉的,萧条的,抑郁的,精神不振的
disappointed 失望的
表示对某人感到失望,通常用介词 in,with (最好用in)
表示对某一行为(doing sth)感到失望,通常用介词 at, about等
表示对某一事实或情况感到失望,一般用介词 with, at, in 等
总结:
be disappointed in sb
be disappointed in sth
be disappointed about (doing) sth
be disappointed at (doing) sth
be disappointed with sth