By Gary Garriott Broadcast: August 25, 2003 This is Steve Ember with the VOA Special English Development Report. Freezing can keep food fresh and safe to eat. Freezing lowers the food temperature belo

发表于:2018-11-27 / 阅读(736) / 评论(0)

VOA2003（下）-发展与科学

Heifer International

Broadcast: August 18, 2003 This is Steve Ember with the VOA Special English Development Report. One of the biggest problems in developing countries is hunger. An organization called Heifer Internation

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VOA2003（下）-发展与科学

Double Drum Sawdust Stove

By Gary Garriott Broadcast: August 11, 2003 This is Bill White with the VOA Special English Development Report. 1)Sawdust is what remains after trees and logs are cut up into boards for building house

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VOA2003（下）-发展与科学

Storing Drinking Water

Broadcast: August 4, 2003 This is Bill White with the VOA Special English Development Report. Safe drinking water has always been rare and valuable. Throughout the world, drinking water has to be stor

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VOA2003（下）-发展与科学

VOA慢速英语2003年-发展与科学 Solar Cookers

By Jill Moss Broadcast: July 28, 2003 This is Bill White with the VOA Special English Development Report. Millions of people around the world cook their food over a smoky fire every day. It is often d

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VOA2003（下）-发展与科学

Habitat for Humanity

By Jill Moss Broadcast: July 21, 2003 This is Bill White with the VOA Special English Development Report. The United Nations estimates that more than one-thousand-million people live in poor housing c

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VOA2003（下）-发展与科学

VOA慢速英语2003年-发展与科学 Oxfam

By Jill Moss Broadcast: July 14, 2003 This is Bill White with the VOA Special English Development Report. From time to time we examine different organizations involved in development and relief work a

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VOA2003（下）-发展与科学

Doctors Without Borders

By Jill Moss Broadcast: July 7, 2003 This is Steve Ember with the VOA Special English Development Report. When a 1)crisis develops in the world, Doctors Without Borders is usually there to help. This

发表于:2018-11-27 / 阅读(772) / 评论(0)

VOA2003（下）-发展与科学

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学英语单词

absolute water content of snow

ACAM (augmented content addressed memory)