prattle about短语⁹⁰⁸⁸⁷⁺⁷ 基本例句 🌏侈谈;娇滴滴地说 Don't prattle about your theory. You must practise it and prove it. 不要空谈你的理论,你必须去实践它并检验它。《21世纪大英汉词典》 We prattle about scientific discoveries, but we have made scant use of them for our benefit. 科学上的新发现我们谈了不少,但怎样利用它们为我们服务却做得很不够。100yingyu