empty; hollow; devoid of content (or substance) 這篇文章寫(xiě)得空空洞洞，沒(méi)有什么內(nèi)容。This article is empty and hollow,devoid of substance./～的詞句empty words (or phraseology,rhetoric)/～的理論empty theory/～的文章empty article;article without substance/～無(wú)物empty;windy;utter lack of substance;devoid of content