音标：[ju:,trɔfi'keiʃən] ；

[化] 富营养化

n. excessive nutrients in a lake or other body of water, usually caused by runoff of nutrients (animal waste, fertilizers, sewage) from the land, which causes a dense growth of plant life; the decomposition of the plants depletes the supply of oxygen, leading to the death of animal life

词型变化：名词复数形式 : eutrophications

词性分布：

名词100%

VOA标准英语2009年-Space Station Astronauts Talk with Tro

Photo: NASA US forces in Iraq speak with 2 NASA astronauts aboard the ISS in a video downlink aired on NASA TV about life on the station, their military careers and what it is like to live in space for up to 6 months, 29 Dec 2009 When many Americans

发表于:2018-12-08 / 阅读(216) / 评论(0)

VOA标准英语2009年(十二月)

礼节美语 Business Etiquette 165 Staycation (3)

很久不见的好友Lisa, Karen和Gina一起吃饭。三个人都说，现在手头很紧，彼此交换勤俭持家的经验。Gina说，她们家实行三十天规则，想买什么东西，先要等上三十天，如果三十天过后还觉得需要

发表于:2018-12-25 / 阅读(127) / 评论(0)

礼节美语

Control--- rule---govern

发表于:2018-12-30 / 阅读(176) / 评论(0)

自考英语（一）78讲

SCIENCE IN THE NEWS - International Treaty on Tobacco Contro

SCIENCE IN THE NEWS - International Treaty on Tobacco Control / Research Projects on Glaucoma By Broadcast: Tuesday, March 08, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special Englis

发表于:2019-01-02 / 阅读(185) / 评论(0)

科技之光

2006年VOA标准英语-Delphi Financial Woes Spell Uncertainty fo

By Crystal Park Washington 05 January 2006 Business- Delphi Job Cuts The decline of American car-makers and fierce competition from overseas suppliers have forced the largest U.S. auto parts manufactu

发表于:2019-01-06 / 阅读(221) / 评论(0)

2006年VOA标准英语（一月）

2006年NPR美国国家公共电台六月-Marketplace Report: Gates to Focus on Phi

Back now with The Day to Day. The world's richest man, the founder of Microsoft, plans to gradually step away from his company's everyday operations. The man of course, Bill Gates, Microsoft's next major goal is to try to go after the online music bu

发表于:2019-01-08 / 阅读(304) / 评论(0)

2006年NPR美国国家公共电台

Del Potro dreams of Olympic medal in London

BUENOS AIRES, July 16 (Xinhua) -- Argentinean tennis star Juan Martin Del Potro, ranked 9th worldwide, said bringing home a medal from the London 2012 Olympic Games would be akin to scoring a Grand Slam win. In an interview with local daily Clarin Mo

发表于:2019-01-09 / 阅读(204) / 评论(0)

英语新闻

VOA标准英语2008年-Malaysia Extends Philippine Peacekeeping Missio

Malaysia agreed to extend a mandate to keep its peacekeepers in the volatile southern Philippines, where they will continue to monitor a shaky cease-fire between the Philippine government and the Moro Islamic Liberation Front. Nancy-Amelia Collins i

发表于:2019-01-13 / 阅读(195) / 评论(0)

VOA标准英语2008年（八月）

商务礼节美语第21期:Staycation 宅(3)

发表于:2019-01-15 / 阅读(157) / 评论(0)

商务礼节美语

60秒科学:Diet and the Brain

Diet and the Brain A study in the Proceedings of the National Academy of Sciences finds that brain chemicals linked to addiction are in play with a high-sugar diet, and a study in the Archives of Internal Medicine shows that a high-carb diet had last

发表于:2019-01-30 / 阅读(312) / 评论(0)

60秒科学

VOA常速英语2007年-Libya Holds Talks With Muslim Rebels in the Phi

By Douglas Bakshian Manila 14 December 2007 The son of Libyan leader Moammar Gadhafi has discussed unifying the two main Muslim rebel groups in the Philippines to help achieve a comprehensive peace between the rebels and Manila. The development came

发表于:2019-01-31 / 阅读(195) / 评论(0)

VOA常速英语2007年（十二月）

Phi Ta Khon Festival（佛诞节）

-Everyone loves a good ghost story. The gruesome, the spiritual and the supernatural arouse an instinctive curiosity in all of us. In the west, ghostly fervor reaches a peak with Halloween on October 31. In Thailand, the spirit-world comes closest to

发表于:2019-02-03 / 阅读(212) / 评论(0)

阅读空间

2007年VOA标准英语-UN Secretary-General to Press for Troops to Pro

By Lisa Schlein N'Djamena, Chad 07 September 2007 Before meeting Chadian President Idriss Deby, U.N. Secretary-General Ban Ki-moon told journalists he would discuss a proposal to deploy thousands of European Union troops and U.N. police officers to h

发表于:2019-02-04 / 阅读(239) / 评论(0)

2007年VOA标准英语（九月）

Federer beats Del Potro to capture second title in Rotterdam

THE HAGUE, Feb. 19 (Xinhua) -- Roger Federer grabbed his second title at the ABN AMRO World Tennis Tournament in Rotterdam after beating Juan Martin Del Potro 6-1, 6-4 in the final on Sunday in Rotterdam. The match was a replay of the 2009 US Open fi

发表于:2019-02-05 / 阅读(185) / 评论(0)

英语新闻

音乐咖啡厅:Phixx - Relentless

音乐咖啡厅:Phixx - Relentless 相关介绍：这是英国超人气偶像组合Phixx的处男专辑。Phixx是参加英国选秀节目The Rivals的五名成员。他们是Andrew Kinlochan、Chris Park、Peter Smith、Nikk Major和Mikey Green。 2

发表于:2019-02-06 / 阅读(237) / 评论(0)

音乐咖啡厅

音乐咖啡厅:Phixx - Don't Walk Out

音乐咖啡厅:Phixx - Dont Walk Out 相关介绍：这是英国超人气偶像组合Phixx的处男专辑。Phixx是参加英国选秀节目The Rivals的五名成员。他们是Andrew Kinlochan、Chris Park、Peter Smith、Nikk Major和Mikey Green。

发表于:2019-02-06 / 阅读(226) / 评论(0)

音乐咖啡厅

VOA常速英语2007年-Rights Groups Find More Disappearances in Phili

By Claudia Blume Hong Kong 16 November 2007 Hong Kong-based human rights groups who recently returned from a fact-finding mission to the Philippines found that the frequency of extrajudicial killings in the country has gone down. Disappearances, howe

发表于:2019-02-08 / 阅读(168) / 评论(0)

VOA常速英语2007年（十一月）

Del Potro and Benneteau reach final in Rotterdam

THE HAGUE, Feb. 16 (Xinhua) -- Juan Martin Del Potro and Julien Benneteau qualified for the final of the ABN AMRO World Tennis Tournament on Saturday. Second seeded Del Potro beat Bulgarian Grigor Dimitrov 6-4, 6-4. The Argentinean did not suffer a s

发表于:2019-02-08 / 阅读(203) / 评论(0)

英语新闻

英文原声：Lana Del Rey 微电影《Tropico》

Lana Del Rey 微电影《Tropico》！电影艺术赋予了这个倾倒众生的女人一个展示灵魂的机会，这是你无法在平时见到的美丽躯体，意味深长的镜头切换唤醒了我们对于神秘之美的好奇，玄妙的音乐如

发表于:2019-02-17 / 阅读(163) / 评论(0)

流行英文歌曲

英语听力：自然百科 Rho Ophiuchi Cloud 璀璨的星云

Transcript for Reference Only --chunshan The infrared astronomical satellite, now celebrating its 25th anniversary, gave us the first all sky view of our dusty infrared universe. Floating above the galactic center is the Rho Ophiuchi Cloud, about 400

发表于:2019-02-26 / 阅读(274) / 评论(0)

自然百科2008年

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

biotic impoverishment