单词：abscess of salivary ducts
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A: How long have you felt like this? [00:00.93]Ａ：你感到这样有多久了？ [00:01.85]B: It started bothering me yesterday afternoon. [00:03.24]Ｂ：从昨天下午起就开始折腾我了。 [00:04.62]A: I think Id better take an X-ray. [00
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[00:29.84]...刮脸 ...shave. [00:32.72]好 OK. [00:35.88]那个，过得很愉快，我们以后再见 Well, this has been lovely. Lets do it again sometime. [00:40.00]- 什么？ - 很快，再见 - What? - Soon. Bye. [00:46.64]那个... So... [00:
听电影学英语-足球尤物
Unit 5 产品问题 About Products About Products 产品问题 Brief Introduction 商品的质量是对外贸易中价格的基础，所有的交易和谈判都是在商品本身质地的基础上进行的。那也是为什么越来越多的公司希望
外贸实务口语
There is one thing that everyone on earth has in common. We all live, eat and breathe within the human body. For two years I’ve been exploring this unique dwelling place. I want to show you what I'v
生命物语
Broadcast: Jan 21, 2003 U.S. researchers have discovered another breast cancer gene that may provide a new point of attack against the disease. The 1) molecule is common to many types of breast cancer
VOA2003（上）-科技先知
A: What's the matter with you? 你怎么啦？ B: This tooth hurts. 这颗牙疼。 A: Let me have a look. 让我看看。 A: Your tooth has an abscess. 你的牙齿有脓肿。 B: My gum also hurts me. 我的牙龈也疼。 A: It seems that there is
旅游英语口语情景对话
A passionate kiss shares much more than intimacy. A single 10-second smooch can transfer tens of millions of bacteria from one partner to the other. Thats the finding from a study in the journal Microbiome. [Remco Kort et al, Shaping the oral microbi
英伦广角
Basal lamina - a term used to describe the different layers which make up the basement membrane. These different layers of the basement membrane, the lamina lucida and lamina densa are only visible wi
医务英语
pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con
医务英语
Stem cells - cells from which a number of more Stimulated saliva - saliva which has been stimulated by chewing. Stippled - a pattern which is made of small dots. Gingiva has a stippled appearance due
医务英语
Planktonic - a form of life style in which an organisms floats freely in a fluid without significant attachment or association with other living forms. Plaque is a film of bacteria in a matrix of sali
医务英语
By David McAlary Washington 02 June 2006 The two U.S. and Russian International Space Station crewmen stepped outside the outpost for a spacewalk to perform maintenance chores as the U.S. space agency
2006年VOA标准英语（六月）
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. People get malaria from Anopheles mosquitoes that themselves are infected with a protozoan parasite called Plasmodium. The mosquitoes do have immune sy
Scientific American(三)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Mosquitoes carry nasty diseasesdengue fever, west nile, malaria. But the microbes that cause those diseases dont attach themselves to the mosquitoes an
Scientific American(一)月
1. US and Asian officials say it appears that North Korea may be preparing to test its nuclear capabilities again. Secretary of State Condoleezza Rice is planning to spend several days in Asia, shor i
美联社新闻一分钟2006
By Anjana Pasricha New Delhi 21 April 2007 The tiny, isolated mountain kingdom of Bhutan has conducted a mock election in preparation for ending a century of absolute rule by the monarchy, and turning the country into a parliamentary democracy next y
2007年VOA标准英语（四月）
By Paula Wolfson White House 05 July 2006 U.S. officials say North Korea has test fired at least six missiles, including a long-range missile that failed shortly after launch. High level consultations are underway. -------- White House officials cal
2006年VOA标准英语（七月）
According to Israeli scientists, tearful women are a turnoff to men. But how do women feel about men who cry? Researchers are soon to begin testing how women react to chemicals contained in the tears of men. Our reporter Li Dong has the details. Natu
世界各地新闻集锦
Lindsay: Look at this designer bag I bought. It was such a steal ! Rafael: Let me see that. You do know that this is an imitation , not the real thing , right? Lindsay: What do you mean? Of course its real. Rafael: Where did you buy it? Lindsay: Well
地道美语播客
LINDA WERTHEIMER, HOST: In Nashville this weekend, there's an exhibition of masks, not the kind that are used to hide, disguise or play dress-up. These have been worn by people with head or neck cancer. The plastic and mesh masks are used during radi
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