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adv.無法下定義地，不明確地...

indefinably的音標(biāo)：indefinably的英式發(fā)音音標(biāo)為：[??nd?'fa?n?bl?]indefinably的美式發(fā)音音標(biāo)為：[??nd?'fa?n?bl?]...

She was indefinably depressed as they walked homeward.當(dāng)他們走上歸途時,她卻莫名其妙地變得消沉了....