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科学美国人60秒 SSS Oldest Known Indigo Dye Found in Peru

Many people remember the colors of the rainbow by the acronym ROY G. BIV. For red, orange, yellow, green, blue, indigo and violet. Well, the color indigo just made news. Indigo gets its name from the plant Indigofera tinctoria and its relatives, whic

发表于:2018-12-24 / 阅读(60) / 评论(0)

2016年Scientific American(九)月

VOA标准英语2008年-Use Of Organic Dye Encourages Australian Skin C

Australian scientists say an organic compound used by Indian women to paint dots or bindi on their foreheads could hold the key to a breakthrough in cancer treatment. Rose Bengal was first used in the early 1900s as a dye for food, textiles and cosm

发表于:2019-01-11 / 阅读(51) / 评论(0)

VOA标准英语2008年（八月）

DEVELOPMENT REPORT - Bringing Color to Life With Natural Dye

DEVELOPMENT REPORT - Bringing Color to Life With Natural Dyes By Jill Moss Broadcast: Monday, August 15, 2005 I'm Barbara Klein with the VOA Special English Development Report. Dye can bring a little

发表于:2019-01-30 / 阅读(70) / 评论(0)

农业与发展

英闻天下——318 Toxic Dye Found in School Uniforms

An investigation has revealed six garment manufacturers in Shanghai have made school uniforms using toxic dye. The city's quality watchdog says it found aromatic amine dye in uniforms sold to 21 primary and middle schools across the city. China's nat

发表于:2019-02-14 / 阅读(60) / 评论(0)

英闻天下

经济学人:投资者:谨慎责无旁贷(2)

Nothing makes individuals more willing to take risks than the sight of other people getting rich. 没有什么能比眼看着别人发财致富而让个人更愿意承担风险了。 But bitcoin is also different from ICOs. 但是，比特币也不同于

发表于:2019-02-17 / 阅读(60) / 评论(0)

经济学人财经系列

托福词汇之essential是什么意思

essential英[??sen?l] 美[??s?n??l] adj.基本的;必要的;本质的;精华的 n.必需品;基本要素;必不可少的东西必不可少;至关重要;本质的;基本词形变化: 复数：essentials 派生词: essentiality essentialness 双语例句

发表于:2019-02-21 / 阅读(159) / 评论(0)

托福英语

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学英语单词

alexander's disease

Almonte, R.

alternating current/direct-current

castration complication

cellulose acetate fibre

challenge coins

characteristiccondition