单词：earth-moving plant
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by Caty Weaver Broadcast: July 4, 2003 This is Steve Ember with the VOA Special English Environment Report. Scientists in the United States say plant life has increased on Earth in the past twenty yea
VOA2003（下）-环境与健康
[00:02.09]第六单元 课文A [00:04.18]Diamonds [00:05.96]金刚石 [00:07.73]Diamonds are rare, beautiful, and also quite useful. [00:10.81]金刚石是稀有物质，美丽，并且有使用价值。 [00:13.90]They are the hardest substance found in nature. [00:16.27]金刚石
大学英语自学教程上
Plants vs. Insects 植物和昆虫 New research is shedding light on one of the longest running battles of all time -- the war between plants and insects. Plants may seem helpless, but they have complex chemical defenses. Plants vs. insects -- today on E
(科普英语)Earth and Sky
Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J
(科普英语)Earth and Sky
1. If we did not have air, there would be no sound. Without air, there would be no life. 2. not…but… 不是 … 而是 … 连接并列状语 eg: In the past three years, he did not study for his
自考英语（一）78讲
Plant Signals 植物的语言 Can plants smell and taste in the same way that animals do? Can they talk to each other and to insects? Learn how scientists hope to unravel some of the mysteries of plant senses -- on today's Earth and Sky. JB: This is Eart
(科普英语)Earth and Sky