crest·fall·en
adjective/ˈkrestfɔːlən/
/ˈkrestfɔːlən/
- sad and disappointed because you have failed and you did not expect to
垂头丧气的；灰心失望的；沮丧的 - Mrs Clark looked quite crestfallen all of a sudden.
克拉克夫人突然显得垂头丧气。
Word Originlate 16th cent.: originally with reference to a mammal or bird having a fallen or drooping crest. - Mrs Clark looked quite crestfallen all of a sudden.