碳氮循环,碳循环,氮循环

VOA慢速英语2011--Next Step After Carbon: Knowing Your Nit

Next Step After Carbon: Knowing Your Nitrogen Footprint This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 A carbon footprint is the amount of carbon dioxide pollution that we produce as a result of o

发表于:2019-01-10 / 阅读(40) / 评论(0)

2011年VOA慢速英语(四)月

AGRICULTURE REPORT - Carbon Dioxide and Crops

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

发表于:2019-01-30 / 阅读(71) / 评论(0)

农业与发展

雅思分类词汇：环境资源相关(一)

大气ATMOSPHERE 大气组成Atmosphericcomposition 空气质量Airquality 大气化学Atmosphericchemistry 大气成分Atmosphericcomponents 大气颗粒物Atmosphericparticulates 二氧化碳Carbondi

发表于:2019-02-02 / 阅读(86) / 评论(0)

英文语法词汇

新西兰英语 220 Yike Bike

Time magazine included the Yike Bike in their list of the 50 Best Inventions for 2009. The Yike Bike is an electric bike which folds. It weighs about 9kg and has a battery which charges in about 20 minutes. You sit up straight on a Yike Bike holding

发表于:2019-02-04 / 阅读(44) / 评论(0)

新西兰英语

万物简史第380期:进入对流层(21)

Altogether there is about twenty thousand times as much carbon locked away in the Earth's rocks as in the atmosphere. 总的来说，被关在地球岩石里的碳，大约相当于大气里的2000倍。 Eventually much of that limestone will end up

发表于:2019-02-25 / 阅读(45) / 评论(0)

万物简史

英语听力精选进阶版 6283

The web-savvy amongst you will know that just as a mouse is no longer only a rodent, a tweet isn't necessarily a noise made by a bird. Nearly a quarter of the new words added to the latest edition of the Chambers Dictionary come from internet culture

发表于:2019-03-04 / 阅读(85) / 评论(0)

英语听力精选进阶版

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学英语单词

associated metric space

automatic electronic potentiometer

back eccentric wheel

be of good comfort

butylthiamine