downcast基本解釋
downcast什么意思
形容詞情緒低落的，向下的; 頹靡
downcast相關(guān)例句
形容詞
1. An unhappy life made her downcast.
不愉快的生活使她沮喪。
2. Ashamed of his mistake, he stood with downcast eyes.
羞于他的錯誤，他眼睛垂視地站著(zhù)。
3. downcast
3. The little girl kept her eyes downcast when the headmaster talked to her.
校長(cháng)同小女孩談話(huà)時(shí)，她一雙眼睛始終低垂著(zhù)。
4. Setbacks made him downcast.
挫折使他沮喪。
downcast網(wǎng)絡(luò )解釋
1.
1. 向下轉換：創(chuàng )建額外的屏幕概念(screen concepts)我不再需要修改程序控制器和提供器類(lèi). 對于新的Shell概念(screen concepts),這個(gè)構架是開(kāi)放的可擴展的,而程序控制器和單獨的提供器類(lèi)對于修改是關(guān)閉的. // 這是 向下轉換(downcast) 的一個(gè)例子
2. 向下重塑：從基類(lèi)重塑(cast)到其派生類(lèi)的過(guò)程通常被稱(chēng)為向下重塑(downcast),因為這個(gè)轉換過(guò)程在表示繼承關(guān)系的樹(shù)結構中顯示了從上到下的移動(dòng)方向. 同樣從派生類(lèi)重塑到其基類(lèi)的過(guò)程被稱(chēng)為向上重塑(upcast). 像BBwindow重塑到Ival_box這樣,從基類(lèi)重塑到其兄弟類(lèi)的過(guò)程被稱(chēng)為交叉重塑(crosscast)
3.
3. 氣餒的：downbent 向下彎曲的 | downcast 氣餒的 | downcome 下降
4. 鍋爐)降水管：downcast ventilator 下向通風(fēng)筒 | downcast 鍋爐)降水管 | downcast 降水管
downcast詞典解釋
1. 沮喪的;悲觀(guān)的
If you are downcast, you are feeling sad and without hope.
e.g. Barbara looked increasingly downcast as defeat loomed.
當敗象已呈時(shí)，芭芭拉看上去越來(lái)越沮喪。
e.g. ...a glum, downcast expression.
憂(yōu)郁、沮喪的表情
2. (眼睛通常因難過(guò)或尷尬)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.
她一言不發(fā)，兩眼低垂。
downcast英英釋義
noun
1. a ventilation shaft through which air enters a mine
adj
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