Disappointed As At A Loss嗒然若失
be disappointed at不满某事实;因为;对…感到失望;对……失望
be rather disappointed at相当令人失望
be disappointed at sth对……感到失望
be disappointed at result对结果感到失望
Disappointed at the low spiral怅望低徊
be disappointed at the news听到这个消息失望
We are disappointed at his他使我们失望