单词：BOD (biochemical oxygen demand)
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CHAPTER TWO Reading POLLUTUO FIGHTERS [00:09.90]Judy is collecting some facts for a class project on pollution. [00:18.44]She is interviewing Doctor Ray,a scientist,about trees. [00:27.51]Judy:Why are you so interested in trees,Doctor Ray? [00:38.16]
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Key Trial of Khmer Rouge Leaders Starts in Cambodia On Monday the United Nations-backed tribunal in Phnom Penh will open its hearing into the four surviving leaders of Cambodia's Khmer Rouge movement. Cambodians have waited three decades for this day
VOA标准英语2011年(六月)
Can Oxygen Be Toxic?氧气有毒吗？ In order for us to live we must have oxygen, so how can it be bad for us? Today we explain how oxygen can be toxic. 氧气是我们生存所必需的，所以它怎么会对我们有害呢？今天我们来解释为
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This is Scientific American's Sixty-Second Science. I'm Christopher Intagliata. Got the minute? A couple million years ago, mammoths migrated north from Africa to colonize Eurasia. Sometime around then a massive ice age kicked inand it was stay warm
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[00:02.44]Unit 21 Human Biology Warm-up [00:07.39]Exercise 2 Listen and guess which parts of [00:11.04]the body of being described. [00:13.00]Which words help you to decide. [00:16.79]1 This organ weighs about a kilo [00:19.77]and is made up of two s
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Manbun Fights With Dadbod For 'Word' From VOA Learning English, this is the Education Report. Does a manbun look good on top of a dadbod? Or would it be a good hairstyle for an ammosexual? And do you really want your kids to Netflix and chill while y
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Sri Lanka hopes to take advantage of the growing regional demand for information technology graduates. A new training institute opens next year to provide skilled graduates to meet increasing demand. Ron Corben recently visited Colombo and has this
VOA标准英语2008年（九月）
Grab my hand take one step Come with me no regrets 'Coz we'll fly higher than what you can imagine When your heart is mine, anything can happen You're my baby I know you hear this song No need to worry about us You ain't doing nothing wrong Coz latel
节奏布鲁斯
LULU GARCIA-NAVARRO, HOST: It's not every day that scientists announce a new season. But that's what ocean researchers just did on the west coast. They say waters off Oregon, Washington and California now have a whole season when the oxygen level on
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On June 3rd, a train loaded with highly volatile crude oil derailed just outside the small town of Mosier in Oregons Columbia River Valley. More than 40,000 gallons of crude spilled out of the train. Some burned away in a 14-hour long fire at the sce
2016年Scientific American(十)月
凭借在iTunes和MySpace的成功，来自美国加州的流行女歌手科尔比凯拉特（Colbie Caillat）的处女专辑《Coco》一经发行便得到了很多歌迷的关注。在美国上市第一周，这张《Coco》共售出5万1千张，在本周的Billboard 200专辑榜中跻身前五名. 在没有与唱片公司签订合约之前
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Colbie Caillat-Oxygen I came apart inside a world 我在这个由怒气冲冲的人们组成的 made of angry people 世界里支离破碎 I found a boy who had a dream 直到有一天我遇见一个寻梦的男孩 Making everyone smile 他令他身边
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By Rory Byrne Phnom Penh 03 April 2007 Preliminary results indicate that the ruling Cambodian People's Party has won a landslide victory in recent local elections. The margin of victory was similar to the result of the last election and was widely fo
2007年VOA标准英语（四月）
By Rory Byrne Phnom Penh 20 June 2007 Cambodia's annual donor conference has ended with pledges of almost $700 million in aid, even though donors expressed frustration at continued corruption and poor governance in the country. Cambodia has enjoyed r
2007年VOA标准英语（六月）
ROME, April 30 (Xinhua) -- Giampaolo Pazzini came off the bench to salvage Inter with a brace in injury time on Saturday as the champions beat Cesena 2-1 to keep the Serie A title race alive until the next round of fixtures. Inter trailed through Igo
英语新闻
Oxygen therapy can bring drug-free relief to many Vidushi Sinha | Washington, DC 15 December 2009 A new study shows that breathing pure oxygen can considerably lessen the agony experienced with severe headaches Cluster headaches are described by suff
VOA标准英语2009年(十二月)
The oil-producing OPEC cartel has for the fourth straight month trimmed its estimate of world demand for oil for the rest of this year and in 2012. The 12-nation Organization of the Petroleum Exporting Countries said Tuesday that the demand for oil w
英语新闻
VIENNA, Jan. 17 (Xinhua) -- The Organization of Petroleum Exporting Countries (OPEC) （石油输出国家组织 ）raised its forecast Monday for global oil-demand growth this year, encouraged by outlook of continued world economic recovery. In 2011
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CHICAGO, April 1 (Xinhua) -- General Motors Co. said on Friday that it sold 206,621 vehicles last month, up 11.4 percent from a year ago, as higher gasoline prices triggered demand for smaller and more fuel-efficient vehicles. The U.S. automaker said
英语新闻
I came apart inside a world 我在这个由怒气冲冲的人们组成的 made of angry people 世界里支离破碎 I found a boy who had a dream 直到有一天我遇见一个寻梦的男孩 Making everyone smile 他令他身边的每个人都能展颜
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