单词：DDT spray
单词：DDT spray 相关文章
With a strong poison spray aimed at a bunch of flying insects, it's easy to imagine several of them falling together at the same time. Because flies are small and dirty creatures, we do not much care if many die at once. However, when it comes to hum
大千世界
[06:12.00]Lesson 9 In All Colours and Shapes [au:]第9课 所有的颜色和形状 [06:16.02]Let's talk. [au:]大家一起谈一谈。 [06:17.07]Can I help you, little girl? [au:]我能你做点什么，小女孩？ [06:19.07]Oh, yes. [au:]哦，是的
新路径小学英语六年级下册(一起)
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The plague is most famous for killing tens of millions of people all over Europe in the 1300s. Plague is caused by the bacteria Yersinia pestis. And th
Scientific American(八)月
[00:02.94] 理发 [00:05.88]A: Hello,sir.I'm ready for you. [00:08.56]A: 先生，您好。该你了。 [00:11.23]B: Is it my turn? [00:12.85]B: 该我了吗？ [00:14.47]A: Yes,please sit on the chair.How do you want to have your hair cut? [00:17.70
英语流行口语
Unit 17 When you have to fry ,use an oil spray. Unit 17 如果你必须油炸食物,使用喷油罐吧 When homemaker Martha Dorn can't help but fry something like sunny一side up eggs - she uses a cooking spray instead of butter or oil. 玛莎多恩是
减肥瘦身英语口语话题
We have to think about security more and more today. It seems the world is becoming a more dangerous place. Most of the people I know are worried about home security. They have alarms on their house and some of my friends have a web cam filming their
听一分钟英文-S
IV. Speaking Out MODEL 1 Our globe is in danger John: How is your Grandma getting along during this usually hot weather? Nora: Over the last few years, Granny has been complaining that the hot, humid weather is killing her. She believes the weather h
新视野大学英语：视听说教程 3
Bar Bet 酒吧的赌博 A guy walks into a bar, stopping to talk to everyone in the bar. As he finishes with each group of people, they all get up and leave and go stand outside the window, looking in. 一个家伙走进酒吧，和里面每个人耳语
英语小达人
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor
Scientific American(九)月
This is Scientific Americans 60-Second Science, I am Cynthia Graber .This will just take a minute. How can we improve engines, inhalers and fire extinguishers? Maybe by copying a beetle. The bombardier beetle's name might scare off predators if they
Scientific American(四)月
Spray Detects Hard-to-Find Tumors Surgeons may soon have a new tool to help locate early-stage cancerous growths; a spray that turns fluorescent green when it comes into contact with tumors. The spray is clear, but contains a non-toxic dye that almos
VOA标准英语2011年(十一月)
African Countries Debate Using DDT in Anti-Malaria Efforts The chemical pesticide DDT has been banned by most countries for use in agriculture, but some continue to use it indoors to kill insects that carry malaria. In Zambia, it's an important part
VOA标准英语2011年(七月)
My fingers feel as though theyve got frostbite, an abandoned spray can lies on the table and most of my kitchen appears to be dusted in a light frosting of silver. 我的手指好像得了冻疮，一个喷雾器扔在桌上，厨房的大片区域看起
阅读空间
世博会开幕这几天一直高温不下，仅5月1、2日两天世博园区救护车出动就达到80多次，其中接诊的26个人是中暑。中暑的英文怎么说呢？大家都知道stroke，中风，而中暑就是heat stroke。 那么，中
英语口语
By Lisa Schlein Geneva 02 May 2006 Environmentalists are calling for the elimination of the toxic chemical, DDT, which is still used in large parts of Africa to combat malaria. The continued use of DD
2006年VOA标准英语（五月）
As Uganda looks to eliminate malaria, the country is engaged in a debate(辩论会) over the use of chemicals such as DDT in some of the world's most malarial regions. In the district of Apac in northern Uganda, the risk of malaria is higher than any
英语新闻
Sexual harassment is not uncommon on the metro in China. There has been an outcry in China after one city banned metro passengers from carrying self-defence products often used by women. 性骚扰在中国的地铁里并不少见。近日，一城市宣
英语新闻
35 dollars for peanut butter? I got 1.23 dollar Jiffy inside. 破花生酱要收我35美元 我家有1.23美元的杰菲花生酱 Then he tells me it's 75 dollars per possum that he removes. 没除掉一只负鼠要收我75美元 Where are you taking
柯南脱口秀