单词:
单词: 相关文章
Oxfam: Power, Water Shortages in Goma As fighting continues in the eastern DRC between government forces and M23 rebels, the humanitarian crisis is growing worse. Oxfam says its stepping up efforts to help about 80,000 people in and around Goma, the
[00:02.02]Unit 22 Environmental Protection [00:06.60]Lesson 3 Unnatural Disasters [00:10.92]Hell and High Water [00:13.46]The last few years have been the worst period [00:16.21]on record for environmental disasters [00:19.22]and experts are predicti
EXPLORATIONS - Yellowstone Volcano By Paul Thompson Broadcast: Wednesday, August 11, 2004 (MUSIC) VOICE ONE: This is Faith Lapidus. VOICE TWO: And this is Doug Johnson with EXPLORATIONS in VOA Special
It worked because the water of the river carried something special within it, an almost invisible treasure that was the secret of Egypts economic might. What made Egypt great is this stuff - silt. It's a rich supermineral silt, it's like an expresso,
Part IV Dangerous Planet 第四部 处境危险的行星 The history of any one part of the Earth, like the life of a soldier, consists of long periods of boredom and short periods of terror.British geologist Derek V. Ager 地球的任何一部分历史
The researchers report an experiment in Iceland where they have pumped CO2 and water underground into volcanic rock. 研究人员发表了一项在冰岛的实验:把二氧化碳和水注入地下变成火山石。 Reactions with the minerals in th