单词：oxy-carbonitride
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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。 carb-, carbo- 表示碳 carbon = carb + on n. 碳 carbohydrate = carbo + h
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86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson （Start at 1'02
科技之光
Australia's bold plans for a carbon emissions trading scheme are under threat after the conservative opposition in Canberra hardened its stance against it. Critics of Prime Minister Kevin Rudd's proposal say it would cost jobs and provoke economic u
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Science and Technology Materials science Cracking a problem 科技 材料科学 通过裂纹解决问题 Another use for a fashionable, new material 一种流行新材料的新用途 LIKE all other human activities, science is subject to fads. 像其它
经济学人科技系列
Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the
英语博客 A cup of English
Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in
英语博客 A cup of English