1. An unhappy life made her downcast.
    不愉快的生活使她沮丧。

2. Ashamed of his mistake, he stood with downcast eyes.
    羞于他的错误，他眼睛垂视地站着。

3. downcast的反义词

3. The little girl kept her eyes downcast when the headmaster talked to her.
    校长同小女孩谈话时，她一双眼睛始终低垂着。

4. Setbacks made him downcast.
    挫折使他沮丧。

1. 向下转换：创建额外的屏幕概念(screen concepts)我不再需要修改程序控制器和提供器类. 对于新的Shell概念(screen concepts),这个构架是开放的可扩展的,而程序控制器和单独的提供器类对于修改是关闭的. // 这是 向下转换(downcast) 的一个例子

2. 向下重塑：从基类重塑(cast)到其派生类的过程通常被称为向下重塑(downcast),因为这个转换过程在表示继承关系的树结构中显示了从上到下的移动方向. 同样从派生类重塑到其基类的过程被称为向上重塑(upcast). 像BBwindow重塑到Ival_box这样,从基类重塑到其兄弟类的过程被称为交叉重塑(crosscast)

3. 气馁的：downbent 向下弯曲的 | downcast 气馁的 | downcome 下降

4. 锅炉)降水管：downcast ventilator 下向通风筒 | downcast 锅炉)降水管 | downcast 降水管

1. 沮丧的;悲观的
    If you are downcast, you are feeling sad and without hope.

    e.g. Barbara looked increasingly downcast as defeat loomed.
           当败象已呈时，芭芭拉看上去越来越沮丧。
    e.g. ...a glum, downcast expression.
           忧郁、沮丧的表情

2. (眼睛通常因难过或尴尬)向下看的，低垂的
    If your eyes are downcast, you are looking towards the ground, usually because you are feeling sad or embarrassed.

    e.g. She was silent, her eyes downcast.
           她一言不发，两眼低垂。

1. a ventilation shaft through which air enters a mine

1. filled with melancholy and despondency

    e.g. gloomy at the thought of what he had to face
           gloomy predictions
           a gloomy silence
           took a grim view of the economy
           the darkening mood
           lonely and blue in a strange city
           depressed by the loss of his job
           a dispirited and resigned expression on her face
           downcast after his defeat
           feeling discouraged and downhearted

    Synonym: gloomygrimbluedepresseddispiriteddown(p)downhearteddown in the mouthlowlow-spirited

2. directed downward

    e.g. a downcast glance