人与生物圈计划

VOA慢速英语2013 EXPLORATIONS - Three man who had a big influence on modern sound and communication technologies

EXPLORATIONS - Three man who had a big influence on modern sound and communication technologies Welcome to EXPLORATIONS, I'm Mario Ritter. Today, Steve Ember and Barbara Klein tell about three man who had a big influence on modern sound and communica

发表于:2018-12-16 / 阅读(28) / 评论(0)

2013年VOA慢速英语(四)月

TED演讲:论生物多样性(5)

And so it is everywhere one looks. 这一现象在世界各地都在发生。 The human juggernaut is permanently eroding Earth's ancient biosphere by a combination of forces that can be summarized by the acronym HIPPO, the animal hippo. 人类正在以

发表于:2019-01-03 / 阅读(36) / 评论(0)

TED演讲科学篇

Croatia’s threatened floodplains

Chris: Hello and welcome to 6 Minute English from BBC Learning English, the programme where we discuss a topical subject and introduce you to some of the interesting vocabulary connected to that topic. I'm Chris and with me today is Rosie. Rosie: Hel

发表于:2019-01-07 / 阅读(73) / 评论(0)

六分钟英语

2007年VOA标准英语-New Orleans Jazzman Makes Music in Mississippi

By Erika Celeste Mississippi 30 August 2007 It has been two years since the greatest natural disaster in U.S. history swept ashore in the form of Hurricane Katrina. Lost lives, homes and businesses changed the American South and Gulf Coast forever. Y

发表于:2019-01-13 / 阅读(66) / 评论(0)

2007年VOA标准英语（八月）

How You Can Broaden Your Horizons with Travel

How You Can Broaden Your Horizons with Travel Instead of just sitting on some tropical beach and sipping pina coladas during your vacations, it is very possible to get a ton of personal growth from your travels. But in order to do this, you will have

发表于:2019-02-09 / 阅读(46) / 评论(0)

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新年短途之旅：九寨沟

Jiuzhai Valley is locally known as Jiuzhaigou (Chinese for Nine Village Valley). It is a national park located in the Min Shan mountain range, Northern Sichuan in South Western China. It is best known for its fabled blue and green lakes, spectacular

发表于:2019-02-12 / 阅读(34) / 评论(0)

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adoptors

afters

annular downcomer space between reactor core and pressure vessel