(1)誇り高い態度で
(2)誇りを持って
(3)勝ち誇った態度で
(4)in a proud manner
(5)with pride
さらに詳しく
(1)大袈裟な態度で
(2)in an exaggerated manner
(1)勝った方法で
(2)勝ち誇った態度で
(3)in a victorious manner; "Virginia had defended her land victoriously"
(4)in a triumphant manner; "she shouted triumphantly"