下射的

例句：

1. 1. She looked downcastas she walked into the room.
   她走进房间时显得情绪低落。
2. 2. Thenews of his failure lefthim downcast for days.
   他失败的消息让他几天都情绪低落。
3. 3.His downcast expression made her feel uneasy.
   他沮丧的表情让她感到不安。