标签：Copper 相关文章
A new round of food safety checks is underway in China after reports emerged suggesting a number of egg-processing plants have been using potentially-toxic copper sulphate to help pickle lime-preserved duck eggs. CRI's Li Dong has more details. Gener
世界各地新闻集锦
第22期:Looking for a Seat 找座位 Y:May I sit here? Y:我可以坐这里吗? X:I'm afraid this seat is taken. X:这个座位恐怕有人坐了。 Y:Oh,is it? Thank you anyway. Y:哦，是吗?不管怎么样仍谢谢你。 X:You're welcome .Why if
出国旅游口语一本通
As the water is warm and tides grow high, horseshoe crabs leave the ocean floor and make their way to the shores and estuaries of the Atlantic Coast. Here in the sheltered waters of South Carolina, they suddenly emerge by the thousands in the spawnin
自然百科2009年
19 My First Day in Philadelphia 我在费城的第一天 by Benjamin Franklin I have been the more particular in this description of my journey, and shall be so of my first entry into that city, that you may in your mind compare such unlikely beginni
陈冠商英语背诵文选合集
News in the age of information We are often told that the age of the information economy has arrived. The idea is that intellectual work is becoming a more important source of wealth than manufacturing. There are already too many factories for the nu
初学者听力文摘精选
Bulgaria is an Iron Curtain country next to the Black Sea. 保加利亚是黑海边的一个国家， It has forests and mountains as well as farm land. 它有很多森林、山脉和农田。 In the forests live bears, wild-cats, and wild boars. 森林
美国学生世界地理教材
Transcript--by myconsent(for reference only) Construction workers in London are currently busy with redevelopment activity across the city. But it often disturbs the graves of thousands of long-deceased Londoners buried deep beneath the modern city.
国家地理2008年
Levis have been the most famous brand of jeans and denim clothing for decades. Levi Strauss Co. was founded in 1853 when Levi Strauss emigrated from Germany to San Francisco to help with his brothers dry goods business. The company began producing de
各大品牌英文介绍
Australian Scientists Propose a Telescope to Look Deep Underground Scientists in Australia want to build what they describe as a downward looking telescope to look for mineral wealth under the Earths surface. The telescope is really a project aimed a
2018年VOA慢速英语(十)月
1. President Barack Obama is promising Gulf Coast residents that the region will be left in better shape than it was before the massive BP oil spill. On a visit to the Alabama Coast, Obama said his administration will do everything it can to make sur
美联社新闻一分钟2010(六月)
Words and Their Stories: Brass Tacks Now, the VOA Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇典故节目。 Our expression today is getting down to brass tacks. It means to get serious about something, to
2011年VOA慢速英语(五)月
AMERICAN MOSAIC - Smithsonian Exhibit Celebrates Rescue of Chilean Miners (MUSIC) DOUG JOHNSON: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) I'm Doug Johnson. This week on our show, we have music from a new album by the Swedish electron
2011年VOA慢速英语(八)月
South Korea Attempting to Reuse More E-Waste 韩国尝试重新利用更多的电子垃圾 South Korea is dealing with increasing amounts of waste from electronic devices. These useless or unwanted parts are often called e-waste. Tons of old computer
2014年VOA慢速英语(十一)月
Ocean Floor is Prime Target of Mining Industry The next great frontier for the mining industry could be hydrothermal vents that lie deep on the ocean floor. The super-hot flues create deposits of sulfide, which contain precious metals such as gold, s
VOA标准英语2012年(六月)
Copper can be rolled or hammered out into thin sheets, and so we say that it is malleable. It can also be easily drawn out into wire, and for this reason we call it ductile. Sheet copper is much used for covering the bottoms of ships, and for making
英国学生科学读本
对于六级考试来说，除了基本的词汇量之外，基础的语法也是不可或缺的哦！那么，我们一起来学习吧！ 1. 常考的几种倒装结构 1) 当表示否定或基本否定的词或词组位于句首作状语时用倒装。
大学四六级阅读
Construction workers in London are currently busy with redevelopment activity across the city. But it often disturbs the graves of thousands of long-deceased Londoners buried deep beneath the modern city. The Wellcome Collection has brought together
自然百科2008年
Directs a great deal of that bucket blast around your waistband. 仍然会将大量的水引向你的腰间。 So you get a lot less cold water in your trousers. 抽出下摆 能够让水较少地流进裤子里。 I know this to be true. 我知道这是
公众人物毕业演讲
GWEN IFILL: This week marks a year since superstorm Sandy struck. More than 70 people were killed along the Eastern Seaboard. Damage totaled more than $65 billion, and it pounded New Jersey and New York City hard. It also prompted a reexamination --
PBS访谈环境系列
Rifles! What for? Don't your mountaineers attack bears dagger in hand? And isn't steel surer than lead? Here's a sturdy blade. Slip it under your belt and let's be off. 枪支：有什么用？你们山中人不是手拿短刀去打熊吗？钢刀不比
《海底两万里》中英双语有声读物