胶体泸过作用

2017年CRI Beijing to pilot air purifiers in schools, kindergartens

Beijing will launch a pilot program to equip schools and kindergartens with air filtration devices. Smog has been a significant issue in the Chinese capital this winter. I was coughing just now, I always wear mask, from school to home. The air is cho

发表于:2018-12-02 / 阅读(218) / 评论(0)

2017CRI中国国际广播电台

访谈录 2008-10-25&10-27 真正的蓝血人

For 40 years, Paul Karason was a fair skin son of the American Northwest, freckles and reddish-blond hair. Like most people who grow older, Pauls hair turned white. But how does he explain this? What was that Aha moment were you think, you know, my

发表于:2018-12-11 / 阅读(199) / 评论(0)

访谈录2008

生活大爆炸第二季第二集_1：The Codpiece Topology

-Sheldon：Worst renaissance fair ever. renaissance：文艺复兴 fair：集市，集会史上最逊的文艺复兴集会。 -Leonard：Please let it go, Sheldon. 别再墨迹了Sheldon。 -Sheldon：It was rife with historical inaccuracies. be rif

发表于:2019-01-01 / 阅读(252) / 评论(0)

生活大爆炸第二季

DEVELOPMENT REPORT - Aid Group Designs System to Make Dirty

DEVELOPMENT REPORT - Aid Group Designs System to Make Dirty Water Safe to Drink By Jill Moss Broadcast: Monday, October 17, 2005 This is Steve Ember with the VOA Special English Development Report. Ea

发表于:2019-01-02 / 阅读(168) / 评论(0)

农业与发展

Ceramic1 Water Purifier2

Broadcast: May 5, 2003 By Jill Moss This is the VOA Special English Development Report. Each year more than two-million people die from diseases caused by drinking dirty water. That is the estimate of

发表于:2019-01-04 / 阅读(219) / 评论(0)

VOA2003（上）-社会广角

VOA慢速英语2009-Development Report - From Depths of a Librar

This is the VOA Special English Development Report. Jeffrey Schwarz coordinates the water filter project for North America from the Carnegie Library Pot Shop, adapting technology developed in Central America during Hurricane Mitch in 1998 The Braddo

发表于:2019-01-11 / 阅读(178) / 评论(0)

VOA慢速英语2009年（六）月

2007年VOA标准英语-Water Filter Wins Developer Engineering Prize

By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica

发表于:2019-02-03 / 阅读(255) / 评论(0)

2007年VOA标准英语（五月）

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american association of mental deficience

Analogeticist

antiinsectan

Arfersiorfik Fjord

auto-intoxication dyscratic

average sound pressure level