摩擦劲度

SSS 2008-03-31

This is Scientific American's 60-Second Science, I am Steve Mirsky, got a minute? You are pulling the tape off the roll and it starts to tear, or you are moving wallpaper and it refuses to strip off in strips or in what may be the most infuriating ca

发表于:2018-12-24 / 阅读(49) / 评论(0)

Scientific American(三)月

VOA标准英语2010年-Ancient Japanese Art of Origami Thrivi

The ancient Japanese art of origami - or paper folding - is thriving today in San Francisco - thanks largely to an American scientist. Remember how much fun it was to play with paper airplanes as a kid? Most people give up those kinds of hobbies once

发表于:2019-01-13 / 阅读(39) / 评论(0)

VOA标准英语2010年(三月)

HEALTH REPORT - Drugs for Parkinson's Disease Linked to Urge

HEALTH REPORT - Drugs for Parkinson's Disease Linked to Urges to Gamble By Cynthia Kirk Broadcast: Wednesday, August 10, 2005 I'm Shep O'Neal with the VOA Special English Health Report. Parkinson dise

发表于:2019-01-30 / 阅读(58) / 评论(0)

健康与经济

CCTV9英语新闻：Heat, Spurs prepare for game seven

Miami had an easy-going training session ahead of the game. James not even wearing his basketball sneakers. The Heat superstar practicing three point shots over and over again during much of the session. Dwyane Wade also looked easy. The 31-year-old

发表于:2019-02-03 / 阅读(95) / 评论(0)

CCTV9英语新闻2013年07月

经济学人:六大经济学原理:失业的自然比率(1)

Economics Brief 经济学简介 Six Big Ideas: The natural rate of unemployment 六大经济学原理：失业的自然比率 Central bankers' holy grail 央行银行家的圣杯 Policymakers have spent half a century in search of the natural rate of

发表于:2019-02-17 / 阅读(23) / 评论(0)

经济学人财经系列

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

acetyl starch

Add Words To

adductor arcus palatine muscle

agriophyllum arenarium bieb.