单词:polyethylene glycol ether
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THIS IS AMERICA - Making Music Together BARBARA KLEIN: Welcome to THIS IS AMERICA in VOA Special English. Im Barbara Klein. STEVE EMBER: And Im Steve Ember. This week, we explore music through the eyes of two married couples. One of them produces rec
情景对话: Walter: Not hydrofluoric. 氢氟酸就不会。 Jesse: Why not? 为什么不会? 知识点笔记: hydrofluoric 氢氟酸 1. 确定辅音 相对来说,辅音变化最少。 单词中 h,dr,fl,r 和 c, 都没有特殊和奇怪
By now, most people have heard of bitcoin. Bitcoin is a virtual currency that has had a huge rise in value during 2017. Bitcoin however is just one of many cryptocurrencies. A cryptocurrency is a kind of money that does not exist in the form of bills
Alice: Hello and welcome to 6 Minute English from BBC Learning English: well be talking about a story in the news and learning some vocabulary along the way. Im Alice and joining me today is Rob. Hi Rob. Rob: Hi there Alice. Alice: Now, Rob are you a
英文歌词: There's no combination of words I could put on the back of a postcard No song that I could sing But I can try for your heart, our dreams, and they are made out of real things like a shoebox of photographs with sepia-toned loving Love is th
Fire has left V?in??l?'s heart stones Light has gone Dark nights no light under the sky Hard to find the fire-child Eagle of fire with fiery feathers Made a spark Ukko made the Kokko's spark Kindle as a fire [Chorus:] Fly into the night bring back th
Words and Their Stories: Get Your Act Together I'm Susan Clark with the Special English program WORDS AND THEIR STORIES. A woman from Japan was telling a friend about her trip to the United States. The woman had visited major businesses and investmen
Words and Their Stories: Get Your Act Together 词汇典故:行动起来 I'm Susan Clark with the Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇典故节目,我是苏珊克拉克。 A woman from Japan was
Words and Their Stories: Get Your Act Together 词汇典故:行动起来 I'm Susan Clark with the Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇典故节目,我是苏珊克拉克。 A woman from Japan was
Top 5 Crowdfunding Projects Ever A great idea is never enough. You need money to turn your idea into a reality. Your family and friends may give you money for your idea. But you are going to need more people to invest, unless you have very rich frien
And then -- this is the key part -- that block is linked to the previous block 随后是关键的部分,该区块连接到前一个区块, and the previous block to create a chain of blocks. 以及更前面的区块,形成了一连串的区块。
英音和美音,原来这么多单词听起来都不一样! 英式英语和美式英语,在很多方面都有所不同,包括在细微的语法使用,单词的拼写以及单词的发音上都有一些区别。今天我们主要分享一些常
Why Teflon Is Slippery Teflon is the trademark name for PTFE, a type of plastic. If you own any non stick cookware, then you probably use PTFE on a daily basis. You might not realize, as you fry your morning eggs, that PTFE is one of the most slipper
马路上的车越来越多,在车多的马路上,自行车道甚至会被挤占,这是真的吗? Alice: Hello and welcome to 6 Minute English from BBC Learning English: well be talking about a story in the news and learning some vocabulary a
If you needed to illustrate the idea of nineteenth-century America as a land of opportunity, you could hardly improve on the life of Albert Michelson. 如果你需要说明19世纪的美国是个机会之乡的理念,那么你很难再找到像阿尔
What Michelson and Morley did, without actually intending to, was undermine a longstanding belief in something called the luminiferous ether, 迈克尔逊和莫雷所做的实际上是在无意之中所做的破坏了长期以来人们对一种所谓光
Yael: I have a question for you, Don. Paper or plastic? Don: Not that question again, Yael. Does anyone really care whether their groceries are put in plastic or paper bags? Y: Sure they do. In fact, the city of San Francisco has taken an interest in
模仿文本: And a British doctor says there isevidence that snipers in another part of the country are using civilians fortarget practice. David Noether is a consultant general surgeon in the UK for the National Health Service. He's just returne
Why Teflon Is Slippery? 1954年,法国工程师马克格雷瓜尔(Marc Gregoire)的妻子柯莱特(Colette)突发奇想,觉得丈夫用来涂在钓鱼线上防止打结的不粘材料特氟龙(Teflon)如果可以用在煎锅上,效果一定不错
Even before worries surfaced that the currency could split in two over the disagreement, 甚至在货币可能分裂成两种的担忧显露出来之前, bitcoin holders started to diversify into some of the many other crypto-currencies, or alt. co