钽钖石, 铁钽钖石

TED演讲:忧郁简史(1)

Sadness is part of the human experience, 悲伤是人类必经的感受， but for centuries there has been vast disagreement over exactly what it is and what, if anything, to do about it. 但几个世纪以来，人们既没有判断出它到底是什

发表于:2018-12-08 / 阅读(57) / 评论(0)

TED演讲教育篇

Numbers 民数记26

26After the plague the Lord said to Moses and Eleazar son of Aaron, the priest, 2Take a census of the whole Israelite community by families-all those twenty years old or more who are able to serve in the army of Israel. 3So on the plains of Moab by t

发表于:2018-12-30 / 阅读(120) / 评论(0)

民数记

美国国家公共电台 NPR U.S. Slashes Funds For Family Planning In Madagascar

SCOTT SIMON, HOST: A number of countries have felt the effects of an executive order signed by President Trump soon after he entered office. The administration reinstated and expanded a policy that bars international aid groups from getting U.S. fund

发表于:2019-01-16 / 阅读(66) / 评论(0)

2017年NPR美国国家公共电台10月

VOA标准英语2009年-Proposed Kenya Tribunal Encounters Resistance

Kenyan lawmakers are ready to again take up a bill to create a tribunal for trying those suspected of organizing the violence which erupted following the December 2007 elections. A deadline for the bill's approval has passed, meaning suspects' names

发表于:2019-02-03 / 阅读(64) / 评论(0)

VOA标准英语2009年(二月)

2006年VOA标准英语-US Company Builds Large High-Flying Balloon to

By Mike O'Sullivan Palmdale, California 06 September 2006 Engineers in the California desert are testing a new communications platform that blends modern electronics with old technology. Developers say a helium-filled balloon carrying high-tech equi

发表于:2019-02-07 / 阅读(143) / 评论(0)

2006年VOA标准英语（九月）

美语听力 English Cafe 242

Topics: Preventing Violence in Schools Post Columbine; American Territories: U.S. Virgin Islands; although versus even though; lite; rate versus rank Words: campus massacre outcast bullied minor to claim clique to retaliate Caribbean inhabitant exoti

发表于:2019-02-23 / 阅读(82) / 评论(0)

美语听力 English Cafe

万物简史第306期:地下的烈火(14)

Because we can't see into the Earth, we have to use other techniques, which mostly involve reading waves as they travel through the interior. 我们无法看到地球的深处，因此不得不使用别的方法，主要包括观察波在地球内部的

发表于:2019-02-25 / 阅读(90) / 评论(0)

万物简史

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aspidomorpha miliaris

be committed

benzenesulfonyl chloride

Blackbeard Island National Wildlife Refuge

caesium beryl

caramiphen ethanedisulfonate

cephalonias