down cast ventilator 进气通风筒
Down Cast 向下转型 ; 执行向下转换 ; 降水管
down cast header 降流管集箱
down cast and up-take ventilator 进排气通风筒
down-cast ventilator 矿坑通风机
cast down 沮丧 ; 使沮丧 ; 使下降 ; 向下转型
down-cast pipe 降水管
down cast tube 直浇口
"a downcast glance"
"downcast after his defeat"
同义词： blue depressed dispirited down(p) downhearted down in the mouth low low-spirited
以上来源于: WordNet
ADJ If you are downcast, you are feeling sad and without hope. 情绪低落的 [usu v-link ADJ]
Barbara looked increasingly downcast as defeat loomed.
失败越临近，芭芭拉的情绪看上去越为低落。
ADJ If your eyes are downcast, you are looking toward the ground, usually because you are feeling sad or embarrassed. (因伤心或尴尬而)向下看的 [usu v-link ADJ]
She was silent, her eyes downcast.
她不做声，目光低垂。
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