水硅铁钾石

Pavan Sukhdev: 自然资源也有价

我们每天都不假思索地免费使用地球上的资源。如果我们必须为此支付一定款项，我们是不是会更珍惜这些资源并减少浪费呢？作为一个大自然的银行家，Pavan Sukhdev为地球上的资源估了价。启

发表于:2019-01-05 / 阅读(62) / 评论(0)

TED公开课:环境重造计划

VOA常速英语2007-UN Reports Call for Changes in Structure of Khme

By Rory Byrne Phnom Penh 05 October 2007 A United Nations agency says the U.N. should pull out of the special tribunal set up to try leaders of Cambodia's genocidal Khmer Rouge government unless reforms are made. Separately, two United Nations expert

发表于:2019-01-16 / 阅读(49) / 评论(0)

2007年VOA常速英语（十月）

Kazakhstan has 17,266 registered HIV carriers

ALMATY, Nov. 4 (Xinhua) -- Kazakhstan's Center for Prevention and Control of AIDS said Friday that the country had 17,266 registered HIV carriers as of Oct. 1,compared with 15,908 as of Feb. 1, 2010. Of the HIV-positive people, 1,432 were diagnosed w

发表于:2019-02-07 / 阅读(61) / 评论(0)

英语新闻

Makhloufi 'recovers' to claim 1500 meters win

LONDON, Aug. 7 (Xinhua) -- Algeria's Taoufik Makhloufi produced a stunning last 300 meters to be proclaimed Olympic 1,500 meter champion on Tuesday night. Makhoufi finished ahead of Leonel Manzano of the USA and Morocco's Abdaali Iguider and deserved

发表于:2019-02-09 / 阅读(84) / 评论(0)

英语新闻

2006年VOA标准英语-Top Shi'ite Cleric Rejects UN Calls for Interna

By Margaret Besheer Irbil, Iraq 02 December 2006 A powerful Iraqi Shi'ite cleric has dismissed a United Nations call for an international conference on Iraq. Abdul Aziz al-Hakim says it is unreasonable to discuss issues pertaining to his country in

发表于:2019-02-09 / 阅读(103) / 评论(0)

2006年VOA标准英语（十二月）

Khizr Khan Says He Would Live This Week A 'Hundred Million Times' Over

Khizr Khan Says He Would Live This Week A 'Hundred Million Times' Over KELLY MCEVERS, HOST: Khizr Khan can't go anywhere without being noticed. People hold doors for him, cry when they see him, even jump out of cars to hug him. He became known around

发表于:2019-02-13 / 阅读(175) / 评论(0)

2016年NPR美国国家公共电台8月

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学英语单词

achromatic system

an aerial line

anolyte compartment

antiparallel coupling