形容詞 downhearted:

1. low in spirits
   同義詞：blue, depressed, dispirited, down, downcast, down in the mouth, low, low-spirited

1. He is very downhearted about the poor grade he got in school.
   他對糟糕的學業(yè)成績感到十分沮喪。
2. Don't be downhearted!
   別心灰意冷！

down.heart.ed

adj.（形容詞）
Low in spirit; depressed.See Synonyms at depressed
消沉的；沮喪的參見 depressed

【引伸】
down.heart.edly
adv.（副詞）
down.heart.edness
n.（名詞）