惠勒 德维特方程

Ben: Tell me that's not Gorbachev. OK, it's resources. Iron; I can get one of those. Pottash. Mom, where do we keep the Pottash? Carol: She's in the bathroom. What is all this? Ben: You can't tell! Carol: A map of Russia, drawn by keeping a pen betw

发表于:2018-12-31 / 阅读(50) / 评论(0) 分类 成长的烦恼第五季

set of wheels free-wheeler Wheel是轮子的意思。轮子是在很久以前就发明的,现在都没有人记得到底是谁发明了轮子。可是,轮子的发明对人类做出了非常大的贡

发表于:2019-01-08 / 阅读(73) / 评论(0) 分类 美国习惯用语

AUDIE CORNISH, HOST: A new movie called Wheeler follows an aspiring country singer-songwriter who moves to Nashville looking for a break. The film eavesdrops documentary-style on confessional songs that may have viewers seeking out more of the music

发表于:2019-01-16 / 阅读(38) / 评论(0) 分类 2017年NPR美国国家公共电台2月

AILSA CHANG, HOST: The Environmental Protection Agency gets a new leader next week. Andrew Wheeler will take over as acting administrator. Of course this is because Scott Pruitt resigned yesterday amid many allegations of ethical violations. We'll ge

发表于:2019-01-17 / 阅读(30) / 评论(0) 分类 2018年NPR美国国家公共电台7月

wheeler-dealer fifth wheel 上次我们学过两个由

发表于:2019-02-04 / 阅读(90) / 评论(0) 分类 美国习惯用语

Science and technology 科学技术 Ancient animal behaviour 远古动物行为 Jurassic lark 侏罗纪雨燕 How the pterosaur caught its supper 翼龙是如何逮到晚餐的 PALAEOETHOLOGY, working out how long-extinct animals behaved, is a subjec

发表于:2019-02-17 / 阅读(26) / 评论(0) 分类 经济学人科技系列