adv.无法下定义地，不明确地...

indefinably的音标：indefinably的英式发音音标为：[ˌɪndɪ'faɪnəblɪ]indefinably的美式发音音标为：[ˌɪndɪ'faɪnəblɪ]...

She was indefinably depressed as they walked homeward.当他们走上归途时,她却莫名其妙地变得消沉了....