单词：transaminase(aminotransferase)
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一个英语单词可分为三部分：前缀（prefix）词根（root）后缀（suffix）。位于词根前面的部分就是前缀。前缀，可以改变单词的意思。 trans-表示横过，越过 transmit = trans + mit（送） 送出去 vt. 传
英语单词大师-Word Master
(SOUNDBITE OF MUSIC) RACHEL MARTIN, HOST: It's Friday and time for StoryCorps. Today, the launch of a new project - it is called One Small Step. And it's an effort to bring together Americans with differing political views. After the 2016 election, J
2018年NPR美国国家公共电台9月
10 Asking for Information About a Coworker GLOSSARY lowdown the interesting, possibly secret information about someone orsomething * When I asked Eiko for the lowdown on the business deal, she refused to tell meanything. to fill (someone) in to give
2011年ESL之商务英语
ESL Podcast 328 Dishonesty at Work GLOSSARY to cook the books to change written numbers illegally, especially financial information, so that they are no longer true* Pilar lost her job when the company found out that she had been cooking the books fo
2007年ESL之商务英语
One common protein-contact prediction is that, if the side chain of one member of a pair of amino acids brought close together by folding is long, 一种比较普通的蛋白质接触预测就是，如果一对氨基酸的一个侧链折叠后很长，
经济学人科技系列
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January
Scientific American(一)月
85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04
科技之光
Eleven countries in the Pacific region have signed a major Asia-Pacific free trade agreement in Santiago, Chile. The deal is a new version of the Trans-Pacific Partnership from which the U.S. withdrew last year. The agreement is called the Comprehens
2018年VOA慢速英语(三)月
From VOA Learning English, this is the Health Lifestyle report. There may be something in your food that you cannot see and cannot taste. But it could be killing you. It is an artificial oil commonly called trans fat. Trans fat is a toxic chemical th
2018年VOA慢速英语(五)月
Dakar School Integrates Special Needs Children Into Regular Classes In Dakar, a school exchange program attempts to break the stigma associated with mental deficiencies by bridging the gap between regular and special needs students. On a Thursday mor
VOA标准英语2012年(二月)
如今，各式各样的电子游戏特别令孩子们着迷，不少孩子也因此而戴上了近视眼镜，这不，雪莉今天就带着视力下降的丹尼尔来检查视力了。结果怎样呢？ Listen Read Learn Clerk: Good afternoon, Ma'am. What can I do for you? Shirley: Good afternoon. My son's sight s
英语口语大赢家
Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c
经济学人科技系列
Science and Technology Creutzfeldt-Jakob disease Breaking down the barrier 科技 克雅氏病 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-cow dis
经济学人科技系列
Part 2. Green Transporation Festival. Keywords. Green Transporation Festival, oil, environment, reduce, other kinds of fuels. Vocabulary. hydrogen, propane, scooter, hybrid, ethanol. A. You are going to hear a report on green transporation festival.
step by step 3000 第一册
LOS ANGELES, Feb. 24 (Xinhua) -- Brave won the Oscar Award of Animated Feature Film Sunday night at the 85th Academy Awards Ceremony. The animated film of Mark Andrews and Brenda Chapman featured a high-spirited Scottish princess named Merida who res
英语新闻
BEIJING, Nov. 4 (Xinhuanet) -- The amount of trans fat and other nutritional information will be marked on the labels of prepackaged food, according to the country's first national standard for food nutrition. The labeling will take effect on Jan 1,
英语新闻
2010年世界官方主题曲：Waka Waka（非洲时刻）(Shakira) You're a good soldier 你是一个好士兵 Choosing your battles 在你选择的战场 Pick yourself up 站起来 And dust yourself off 掸净灰尘 And back in the saddle 重新上路
流行英文歌曲
听歌学英语:Waka Waka 2010年南非世界杯主题曲 Waka Waka (This Time For Africa) 哇咔哇咔（非洲时刻） 歌手：Shakira You're a good soldier Choosing your battles Pick yourself up And dust yourself off And back in the saddle You'r
听歌学英语
Eating a small steak every day could be as good for you as stopping smoking, scientists say. 科学家说，每天吃一小块牛排可以像戒烟一样对你有好处。 People who eat lots of protein-rich food were found to have lower blood pressu
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