be disappointed; despair; lose hope; beyond (all) hope;

　　例句:

　　1.结果并未让我失望。

　　I have not been disappointed.2.你最大的失望是什么?

　　What has been your greatest disappointment?3.马普利人的失望引发了暴力事件。

　　Mapuche frustration has bred violence.4.但是马银江失望了。

　　But mr. ma met disappointment.5.最终结果是失望到处皆是。

　　The net result is frustration all round.