名詞 downcast:

1. a ventilation shaft through which air enters a mine

形容詞 downcast:

1. directed downward
2. low in spirits
   同義詞：blue, depressed, dispirited, down, downhearted, down in the mouth, low, low-spirited

1. A downcast glance.
   低垂的目光
2. He seemed very downcast at the news.
   那消息似乎使他非常難過(guò)。

down.cast

adj.（形容詞）
Directed downward:
低垂的：
例句：
a downcast glance.
低垂的目光

Low in spirits; depressed.See Synonyms at depressed
垂頭喪氣的；沮喪的參見 depressed